Answer:
The type of cell division, meiosis, ensures. Meiosis also allows genetic variation through a process of DNA shuffling while the cells are dividing.
Explanation:
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To identify dividing cells under a microscope, look for physical characteristics such as visible chromosomes during mitosis and the appearance of an actin ring or cell plate during cytokinesis. Scientists may use fluorescent dyes and certain types of microscopes to better visualize these processes.
Explanation:When observing a cell under a microscope, you can recognize cells that are dividing by certain physical characteristics that happen in the stages of cell division. The crucial stage you can observe under a microscope is mitosis. During mitosis, the cell's chromosomes become condensed and highly visible. For example, in the anaphase of mitosis, microscopic images or micrographs show the cell's chromosomes being pulled apart by mitotic spindles.
Another distinguishing feature can be noticed after mitosis, in cytokinesis. In cytokinesis, where the cell splits into two daughter cells, you can see in animal cells a structure called an actin ring which aids in the division, while in plant cell, the cell plate appears which later develops into a cell wall.
Scientists often use fluorescent dyes and light microscopes to highlight these structures, which can make identifying dividing cells easier. The type of microscope used can greatly impact the clarity of these images, with tools like differential interference contrast (DIC) microscopes offering enhanced contrast for better visibility of the cell structure.
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Question 14 of 20 A mutation in human ATPase 6, which corresponds to E. coli subunit a, from leucine to arginine at position 156 may allow the movement of protons across the membrane, but not the rotation of the ring of c subunits. How might this possible mechanism affect the function of ATP synthase? Choose two answers. There would be no net effect on the overall function of ATP synthase. There would be an uncoupling of proton translocation and ATP synthesis. The c ring would become uncoupled from the γ and ε subunits. ATP hydrolysis coupled to proton transport out of the matrix would increase. Proton binding to subunit c would be impaired. ATP synthase would remain sensitive to F0 proton conduction inhibitors.
The answers are the following:
1- There would be an uncoupling of proton translocation and ATP synthesis.
2- ATP synthase would remain sensitive to F0 proton conduction inhibitors.
Please provide a legitimate answer and provide an explanation for the question below.
Why would imbalanced hormone levels make it difficult for a woman to become pregnant?
Answer:
Prolactin is the hormone that controls the production of breast milk. Prolactin is also responsible for triggering the hormones to begin ovulation and allow the eggs to grow and mature properly. If your Prolactin levels are out of whack, it can be difficult for you to become pregnant.
Explanation:
For your post you must choose one example of how your chosen primate species communicates. Name the species and and give one example. You must describe one way that your species communicates (There are many things that are considered communication such as gestures, vocalizations etc.) You must explain what your species communicates (e.g. hunger, fear etc.) You must also explain how communication increases fitness within the species that you choose. In your answer make sure you explain what fitness means. Clearly explain how your chosen mode of communication would enhances fitness within your chosen species.
Answer:
Explanation:
Lets take an example of human primates -they communicate in a diverse way in their life cycle using gesture ,posture ,vocals ,expressions etc . The the humans are in their infant stage they cry when they feel hunger . No one teaches them to do so these are naturally done by then through natural instincts .They expresses their anger by making sounds . As we grow up we use all of our sense organ to communicate with the organisms and the environment . We uses verbal as well as non verbal communication depending upon the need . Human primates uses diverse ways to communicate ,visual expressions and gestures also speak alot .
communication increases fitness within the species as they talk about their need . Through communication only relationships and interactions established among primate. This can be used to communicate information among members of a troop that can increase the fitness of a collective group . As we know that as a community we share responsibilities ,so if the communication is strong life expectancy increases in many primates (such as monkey , tigers and dears ) .
What gender is a hagfish?
Answer:They are sexually dimorphic — a mature female hagfish is typically 63 cm long (25 inches) and males are typically 48 cm (19 inches); females are heavier as well, 260 grams (nine ounces) and males are 180 grams (6 ounces).
Explanation:i got it from google so hope it helps!
Multiple choice questions
1. Which of the following are pentadactyl limbs
I Bee front leg
II Bird wing
III Dolphin flipper
A ll only
B 1 and II only
Cland Ill only
Dll and Ill only
Answer:
D
Explanation:
Answer:
It is D
Explanation:
The transduction of sound waves into action potentials occurs ________.
A. when hair cells are bent against the tectorial membrane, causing them to depolarize and release neurotransmitter that stimulates sensory neurons.
B. as the basilar membrane vibrates at different frequencies in response to the varying volume of sounds.
C. within the tectorial membrane as it is stimulated by the hair cells.
D. within the middle ear as the vibrations are amplified by the malleus, incus, and stapes.
E. as the basilar membrane becomes more permeable to sodium ions and depolarizes, initiating an action potential in a sensory neuron.
Answer:
A. when hair cells are bent against the tectorial membrane, causing them to depolarize and release neurotransmitter that stimulates sensory neurons.
Explanation:
This is the mechanism of propagation and transmission of sound waves as action potential to from the ear to auditory centres in the brain. This mechanism takes place in the inner ear( organ of corti, supported by basilar membrane.There are group of receptors in the Endolymph, whicha are hair cells supported by the tectorial membrane,.The organ of Corti acts as transducers in the inner ear and converts the circular fluid motion to electrical signals as action potential, when the hair cells bends against the tectorial membrane as a results of vibration of the endolymph The causes depolarization, and therefore action potential.
The potential is transmitted to the auditory centres in the brain for sound perceptions.
Consider the scenarios described below. Match the concept described by the scenario with the theory.
Five lizards were moved from Lost Island to Fantasy Island (which was devoid of this species of lizards). Within 35 years the lizards on Fantasy Island have larger heads and stronger bites then those on Lost Island, reflecting a diet higher in plant material then at Lost Island.
Geologists who study rock formations, water movements, and mountain formations use the phrase 'The present is the key to the past".
A group of rats is trained to correctly run a maze. The first rats would get the maze wrong 165 times before running it perfectly. After a few generations, the rats could run the maze only 20 times before learning it correctly.
An investigator considers fossils in the strata in the rocks throughout a continent. It is noted that a very large number of species disappeared from the fossil records about 65 million years ago. It is proposed that a large asteroid impact in the area lead to mass extinction.
The options are: gradualism, uniformitarianism, catastrophism, Scala Naturae, natural selection, inheritance of acquired characteristics
Answer:
1 - natural selection
2 - uniformitarianism
3- inheritance of acquired characteristics
4 - catastrophism
Explanation:
1. Natural selection refers to the evolution of organism or changes in the characterstics of organism depending on the environmental conditions. Hence, the lizard moved on fantasy island evolved with larger head and stronger bites as per the environmental condition.
2. The concept of Uniformitarianism states that the natural geological processes happening in present have already occured in past with same intesity and rate. Hence, geologist uses the phrase "The present is the key to the past" for formation of mountain, rock formation and water movements.
3. Inheritance of acquired characteristics are the characteristic acquird by the ancestors and transmitted that gradually acquired characteristic to their progeny. Hence, the rats acquire the charactieristics and transfered it to the next generations.
4. Catastrophism means the regular occurrence of meteorological and geological disturbances to explain the existence the fossil record. Hence, teh mass exticiton due to asteroid impact is an example of Catastrophism.
So, the correct options in sequential order is natural selection, uniformitarianism, inheritance of acquired characteristics, and catastrophism.
All cells come from ___ cells through the process cell division
Answer:
Other cells or the mother cell
Explanation:
Answer:
preexisting cells
Explanation:
Robert and Susan are married and have 2 children, one son and one daughter. The children have different hair colors and eye colors. Which of the following statements explains these
differences in the children?
A) The environment affects these children before their birth
B) Hormone changes in a pregnant woman's body cause traits to develop differently in fertilized egg
C) Sexual reproduction produces fertilized egg that has a unique genetic make-up
D) There is a lack of variation in the genes of the parent's sex cells
The varying physical traits, such as hair and eye color, in Robert and Susan's children are due to the unique combination of genetic information from each parent through sexual reproduction. The differences are attributed to the distinct set of alleles each child inherits, not environmental factors or epigenetic influences in this context.
Explanation:The differences in hair and eye color between Robert and Susan's children can be explained by the unique genetic makeup that results from sexual reproduction. Each child inherits 50% of their genes from each parent, giving them a combination of traits that can result in varying hair and eye colors. The correct statement is C) Sexual reproduction produces fertilized egg that has a unique genetic make-up.
During sexual reproduction, the egg and the sperm each contribute 23 chromosomes, which contain DNA sequences known as genes. These genes have variations referred to as alleles, determining different traits, such as hair color and eye color. As siblings receive a different combination of alleles, this accounts for the varied physical appearance between them, despite having the same parents.
While environmental factors and epigenetics can influence the expression of certain traits, the primary reason for the differences between the children's hair and eye colors is their unique genetic composition derived from their parents' reproductive cells.
Final answer:
The differences in hair and eye colors in Robert and Susan's children are due to the unique genetic make-up resulting from sexual reproduction. Each child inherits a mix of alleles from their parents, leading to individual expression of traits.
Explanation:
When it comes to explaining why Robert and Susan's children have different hair colors and eye colors, sexual reproduction is the key factor. Sexual reproduction results in a fertilized egg that has a unique combination of genetic make-up from both parents. Since humans reproduce sexually, each child inherits a distinctive set of genes, comprising 50% from the mother and 50% from the father. The variance in traits like hair and eye color arises from different combinations of the alleles (versions of genes) inherited from each parent.
Each parent contributes one allele for every gene to their offspring. These alleles can be the same or different between siblings, which is why brothers and sisters may not have the same eye or hair color, even though they have the same parents. The fertility process also involves the healthy functioning of the parents' reproductive systems, including hormone regulation to produce and release gametes correctly.
Therefore, the correct answer to the question is (C) Sexual reproduction produces fertilized egg that has a unique genetic make-up.
Which best describes the meaning of this poem? "Treat the Earth well. It was not given to you by your parents; it was loaned to you by your children. We do not inherit the Earth from our ancestors; we borrow it from our children." -Ancient Native American Proverb
Our parents gave us the Earth.
We need to think about how what we’re doing to the environment now will impact our kids and their kids and their kids.
We need to think about the needs of humans now, because we inherited the Earth and can do with it what we want.
We should be good to the Earth because that’s what our ancestors wanted.
Answer:
Treat the Earth well, don't pollute it, etc because we need to keep it in god shape for our posterity so that they can live happily on a clean and healthy Earth.
Explanation:
The poem's main idea is that we need to consider how our current environmental actions will affect our children, their children, and their children. So, the correct option is B.
What is an Environment?All living or non-living objects that occur naturally, or in this example, without the use of artificial means, belong to the natural surroundings or natural world. The phrase is most frequently used with reference to Earth or certain regions of it.
Environment can be summed up as the effects of all the living and non-living things that have an impact on human life. Non-living or abiotic elements are water, land, sunshine, rocks, and air, whereas all live or biotic components are animals, plants, woods, fisheries, and birds.
The poem's major point is that we should think about how our current environmental practices will influence our children, their children, and their children, as illustrated by the aforementioned scenario.
Therefore, the correct option is B.
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What describes the physical expression of genes like having brown hair or having the ability to roll your tongue?
A: allele B: phenotype C: genotype
g Consider a series of metabolic events during fasting. Within a few days after a fast begins, nitrogen excretion accelerates to a higher‑than‑normal level. After a few weeks, the rate of nitrogen excretion falls to a lower level and continues at this low rate. However, after the fat stores have been depleted, nitrogen excretion rises to a high level. Identify the process that triggers the initial surge of nitrogen excretion. depletion of glycogen stores liver damage nucleic acid breakdown depletion of fatty acid stores Identify the process responsible for the fall in nitrogen excretion after several weeks of fasting. fatty acid breakdown protein synthesis nucleic acid synthesis glycogen breakdown Identify the process responsible for the increase in nitrogen excretion when the lipid stores have been depleted. nucleic acid breakdown protein breakdown glucosamine breakdown glycogen breakdown
Answer:
. Identify the process that triggers the initial surge of nitrogen excretion,
The reason for this is because of the gluconeogenesis ,(in the liver and cortex of the kidney) which make up for the reduction in glucose blood level, from rapid catabolism to glucose at the beginning of fasting, by breaking down protein to glucose in the liver. Therefore excess Nitrogen is produced as the byproducts of amino acids catabolism.
Physiologically the mammalian brain prefers the keto bodies supply from fatty acids catabolism from gluconeogenesis compare to protein. These water solube subtances cross the BBB to reach the brain the CNS substituting for glucose. Thus as more fatty acids is converted to ketobodies at faster rate, the brain gets adapted to this, and therefore catabolism of amino acids drops, hence Nitrogen concentration in the blood drops.
However, with exhaustion of Glycogen and fatty acid, catabolims of amino acids resumes. therefore, more amino acids are broken down, and Nitrogen build up in the Urine for excretion.
Explanation:
Whit is biogeographic isolation
Answer:the separation of members of the same species, a group of organisms that breed and produce offspring that can breed.
Explanation:
"Biogeographic isolation refers to the process by which populations of a species become separated from one another by geographical barriers or environmental changes, leading to a reduction or cessation of gene flow between the populations. Over time, this can result in the populations diverging both genetically and phenotypically, potentially leading to the formation of new species.
The geographical barriers that can cause biogeographic isolation include mountains, rivers, glaciers, oceans, and human-made structures like roads and cities. Environmental changes, such as climate change, can also alter the distribution of habitats, effectively isolating populations.
There are several key aspects to biogeographic isolation:
1. Allopatric Speciation: This is the primary mode of speciation associated with biogeographic isolation. It occurs when a physical barrier subdivides a population into two or more groups, which then evolve independently due to differences in their local environments and genetic drift.
2. Vicariance: This is a specific type of allopatric speciation where a widespread species gets divided by a new barrier. For example, the formation of a mountain range or the splitting of a continent can lead to vicariance events.
3. Dispersal: Sometimes, a few individuals from a population may cross a barrier and establish a new population in a different geographic location. If this new population becomes isolated, it may undergo allopatric speciation.
4. Founder Effect: When a small group of individuals becomes isolated from the main population, the genetic diversity of this group is often reduced. The limited gene pool can lead to rapid evolutionary changes in the isolated population.
5. Adaptive Radiation: In some cases, biogeographic isolation can lead to adaptive radiation, where a single ancestral species diversifies into a variety of species, each adapted to a different ecological niche within the isolated environment.
Biogeographic isolation is a fundamental concept in evolutionary biology and ecology, as it helps explain the distribution and diversity of life on Earth. It is one of the main mechanisms by which biodiversity is generated and maintained."
A DNA sequence of interest was digested and ligated into the middle of the AmpR gene region of pBR322 vector. The vector also contains a TetR gene which is not interrupted. After introducing the recombinat DNA into bacterial cells, the resulting transformants were tested on a variety of media. Which of the following results would be expected? Group of answer choices Growth on tetracyclin containing media. Death on media containing both tetracyclin and ampicillin. Growth on media containing both tetracyclin and ampicillin. Growth on ampicillin containing media.
Answer:
The following two results are possible:
Option A "Growth on tetracyclin containing media." and
Option B "Death on media containing both tetracyclin and ampicillin."
Explanation:
Since the TetR gene was not interrupted, the bacteria is resistant to the presence of Tetracyclin antibiotic in the media, so yes, it will grow when there is only tetracyclin present. However, when ampicillin is also introduced, the bacteria can no longer grow since its AmpR gene has been rendered non-functional. It is now no longer resistant to the presence Ampicillin and hence, will not be able to grow in its presence.
Hope that answers the question, have a great day!
Transformed E. coli cells with the DNA sequence inserted into the AmpR gene of pBR322 would be expected to grow on tetracycline-containing media but not on media with ampicillin or both antibiotics.
Explanation:In this scenario, where a DNA sequence has been inserted into the pBR322 vector disrupting the AmpR gene, the transformed E. coli cells would exhibit specific growth patterns on media containing antibiotics. Since the AmpR gene is interrupted, the cells would not be resistant to ampicillin anymore, but they would still retain resistance to tetracycline due to the intact TetR gene. Therefore, we would expect the cells to grow on tetracycline-containing media but not on ampicillin-containing media, and they would certainly not grow on media containing both antibiotics.
Which statements about cellular respiration are true? Choose
more than one answer.
Breathing and cellular respiration are unrelated
Cellular respiration is a vital component of the respiratory
system
Individual cells carry out cellular respiration
Cellular respiration is a continuous process
The main purpose of cellular respiration is to create new
cells
An elephant's cells undergo cellular respiration
Following are the true statements about cellular respiration :
Cellular respiration is a vital component of the respiratory system.
Individual cells carry out respiration.
Cellular respiration is a continuous process.
An elephant's cells undergo cellular respiration.
Cellular respiration :Cellular respiration is the process that occurs in every cells (in the mitochondria) of plants and animals to break down sugars in the presence of oxygen that is derived from the breathing process to release energy in the form of ATP.
This process releases carbon dioxide and water as waste products that is exhaled by lungs.
From the above statement, it can be concluded that breathing and cellular respiration are related to each other.
Also each and every cell carry out cellular respiration to get ATP and carry out the normal function.
This fundamental process occurs in plant and animas ( includes elephant).
The purpose of cellular respiration is to get energy in the form of ATP to carry out essential functions of the living cells.
Hence this concludes the correct and incorrect options for cellular respiration.
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True statements about cellular respiration confirm that individual cells carry out the process, it's continuous, and all living things, including elephants, undergo it.
Explanation:When considering which statements about cellular respiration are true, let's clarify some key points. Cellular respiration is the metabolic process happening inside cells where glucose breaks down with oxygen to produce energy in the form of adenosine triphosphate (ATP), water, and carbon dioxide.
Individual cells carry out cellular respiration - This is true as every cell in an organism needs energy from ATP to perform various functions.Cellular respiration is a continuous process - This is true because cells consistently require energy to maintain homeostasis and support life-sustaining reactions.An elephant's cells undergo cellular respiration - This is also true. Like all living organisms, an elephant's cells perform cellular respiration to meet their energy needs.Statements that cellular respiration is a vital component of the respiratory system and that the main purpose is to create new cells are misleading. The respiratory system's role is to provide the oxygen required for cellular respiration and remove carbon dioxide, which is a product of this process. Moreover, the main purpose of cellular respiration is energy production, not the creation of new cells.
Breathing and cellular respiration, while related due to the exchange of gases (oxygen and carbon dioxide), are not the same. Systemic respiration involves breathing and gas exchange in the lungs, while cellular respiration happens at a cellular level, transforming glucose and oxygen into energy.
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Match the stages of the water cycle with the correct places in the model.
precipitation
infiltration
transpiration
groundwater
evaporation
condensation
Answer:
Explanation:
groundwater, evaporation condensation transpirtation infiltration precipitation
Answer:
The correct sequence of events is as follows:
evaporation
condensation
precipitation
runoff
infiltration
groundwater recharge
Explanation:
Correct on edmentum.
A biologist exposes mice to mutagenizing X rays to generate an array of different mutants. He hopes to generate a mutant form of acetylcholinesterase that will be functional at normal body temperature but inactive at a higher temperature. Which step below would work as an initial screening step in the biologist's quest to eventually identify a mutant of this type?
Look for mice with normal muscle contraction–relaxation activity at normal body temperature that develop continuous muscle contraction during an induced fever.
Look for mice that develop hyperactivity and rapid muscle movements as their body temperature changes from normal to the higher temperature of an induced fever.
Look for mice with a normal response to loud noise that become more easily startled by the same noise stimulus as their body temperature rises during an induced fever.
Look for mice with normal muscle contraction–relaxation activity at normal body temperature that develop an inability to contract muscles during an induced fever.
Answer:
The correct option is B:
"Look for mice that develop hyperactivity and rapid muscle movements as their body temperature changes from normal to the higher temperature of an induced fever."
Explanation:
The enzyme acetylcholinesterase is responsible for the breakdown of acetylcholine which is a neurotransmitter. Once the enzyme is inactivated at a higher temperature, it will cause acetylcholine to build up in the synapse. This will lead to a continued stimulation of its target receptors that can result in seizures, and hence, this will be the case with the mice who have the mutant form of acetylcholinesterase enzyme.
Hope that answers the question, have a great day!
The step that will be required to identify the mutant will be A. Look for mice with normal muscle contraction–relaxation activity at normal body temperature that develop continuous muscle contraction during an induced fever.
In biology, it should be noted that a mutant simply means an organism that arises as a result of mutation. It's an alteration of the DNA sequence.
Based on the information given, to identify the mutant, it's important to look for mice with normal muscle contraction–relaxation activity at normal body temperature that develop continuous muscle contraction during induced fever.
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Genetics Problems (ABO Blood System) The chart below lists the blood phenotypes of 8 individuals. Use the information in the chart to solve the genetics problems that follow. Females Blood Type Males Blood Type Anne Type O Charlie Type A Wendy Type B Scott Type AB Susan Type AB Larry Type O Patricia Type A Keith Type B 1. Larry has a son with type B blood. Which of the females listed above could be this child's biological mother? 2. Anne is pregnant with Scott's child. What is the chance that the baby will have type A blood? 3. Because her daughter has type B blood, Patricia insists that Keith is the father. Keith claims that Scott is the father of Patricia's baby girl. Is it possible that Scott is the baby's father? 4. Keith and Wendy have a 4-year old with type O blood. How is this possible? 5. Susan is the mother of Charlie's first two children. The oldest, Dawn, has type AB blood while her sister, Kate, has type B blood. Charlie is now expecting a baby with Anne. What is the chance that this child will have type O blood? 6. Erin, Patricia and Larry's daughter, is married to Jeff. Jeff was in a serious car accident and needs a transfusion but Erin is told that Jeff cannot be given her blood. Based on this information, provide Erin's blood genotype and blood phenotype. 7. Scott and Susan's son, Paul, is willing to donate blood to a young girl with leukemia. If the recipient has type O blood, will Paul be able to donate to her?
Answer:
Explanation:
Female blood type Male blood type
Anne Type O Charlie Type A
Wendy Type B Scott Type AB
Susan Type AB Larry Type O
Patricia Type A Keith Type B
1. Larry has a son with type B blood. Which of the females listed above could be this child's biological mother?
For Larry that is of type O to produce a son with type B blood, his mother has to be either of type B or AB. Which is either Wendy or Susan
2. Anne is pregnant with Scott's child. What is the chance that the baby will have type A blood?
Since Scott possess the AB codominant type and Anne's type has to be inherited in the recessive form, the chances of producing type A is 50% and B is 50%. Thus, the chance that the baby will be of type A blood is 50%.
3. Because her daughter has type B blood, Patricia insists that Keith is the father. Keith claims that Scott is the father of Patricia's baby girl. Is it possible that Scott is the baby's father?
Since Scott that is of type AB is the father of a type B child, the mother Patricia that is of A type has to have a genotype that is AO for it to be possible that Scott is the father.
4. Keith and Wendy have a 4-year old with type O blood. How is this possible?
Keith is of type B blood and Wendy is also of type B blood. It is possible to have a 4-year old with type O blood if if both parents are of the BO genotype.
5. Susan is the mother of Charlie's first two children. The oldest, Dawn, has type AB blood while her sister, Kate, has type B blood. Charlie is now expecting a baby with Anne. What is the chance that this child will have type O blood?
Charlie and Susan can only produce Kate of type B blood if they are AO and AB respectively. Thus, since Charlie's genotype is AO, there is a 50% chance that he can produce a child of type O blood with Anne who is of type O blood.
6. Erin, Patricia and Larry's daughter, is married to Jeff. Jeff was in a serious car accident and needs a transfusion but Erin is told that Jeff cannot be given her blood. Based on this information, provide Erin's blood genotype and blood phenotype.
For Erin to be unable to give her blood to Jeff, it means Jeff is of O blood type and Erin is not, meaning she can either be A+, B+ or AB. But since her mother is of type A and father is of O, this rules out AB and also B. Her genotype can't be AA since her dad is of type O blood. Thus, it can be claimed that she is of genotype AO of type A blood type.
7. Scott and Susan's son, Paul, is willing to donate blood to a young girl with leukemia. If the recipient has type O blood, will Paul be able to donate to her?
Since the recipient has type O blood, she can only receive from a type O patient. Paul cannot be a donor because both parents are of AB blood type meaning Scott is either of type A, B or AB. Thus, he will not be able to donate as he is not of O type.
b
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1. Explain how primate hand features increase fitness and give one example. When writing about your example name the hand feature that you have chosen and explain clearly why it increase fitness in a tree environment.
2. Conjecture what would happen if a primate infant did not possess your chosen primate hand features. Answer this question with the survivability of the infant in mind.
Answer:
1. Opposable thumbs are one of the characteristics of the primates that enhances their fitness. The thickest digit found in the hand is the thumbs that possess the tendency to rotate and move in distinct orientations in comparison to other digits. This makes the primates possess the tendency to hold the objects with the help of their hands in comparison to other animals that can only hold objects like food with the help of their mouth.
2. In case, if a primate infant fails to possess opposable thumbs, then it would become much tougher for him or her to pick the objects. With practice and time, the individuals would develop the habit of holding things with the help of other digits of the hand, however, the grasping power will not be that much or it can be said that such individuals would fail to exhibit strong grasping power.
Opposable thumbs in primates increase fitness by enhancing tree climbing ability, offering access to food, shelter and safety. Without this feature, a primate infant's survivability would be compromised due to challenges in accessing these resources.
Explanation:Primate hand features, specifically opposable thumbs, improve their fitness by enhancing their ability to grasp objects, especially tree branches. The opposable thumb in primates, a feature that allows the thumb to touch the other digits on the same hand, enables the primates to climb trees with more precision, improving their survival in tree environments by providing them a space to live, protection from ground predators, and access to food resources.
If a primate infant did not possess this specific feature, it would limit its ability to effectively grasp and climb trees, seriously compromising its survivability. Inability to climb trees would mean limited access to essential resources like food and shelter leading to higher susceptibility to predation and malnutrition.
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The neural pathway represents the nerves that connect the sense organs to the brain what happens along the neural pathway when the eye sees apple
Answer:
The visual cortex in the brain processes the signals to create the perception of vision.
Explanation:
Hope this helps.
The visual cortex while the mind processes the alerts to create the notion of vision, whilst the eyes sees the apple.
The Ophthalmic nerve is responsible for the actions of eyes, ophthalmic nerve is accountable for the neural pathway connection.
Neural pathwaysNeural pathways are the companies of nerve fibers which bring records among the numerous elements of valuable frightened system.Neural pathway is the connection formed by axons that projects from neurons to make synapses onto neurons in another location , to enable a signal to be sent from one region of the nervous system to the another.Neurons are connected by the axons or by the bundle of axons known as nerve tract.
Thus, the visual cortex creates the alert to creates the perception through the eye after seeing the apple.
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dentify and briefly discuss each mechanism ensuring against simultaneous fatty acid synthesis and oxidation in the same cell. Match the words in the left column to the appropriate blanks in the sentences on the right. ResetHelp A key intermediate in fatty acid synthesis, , carnitine acyltransferase I, thereby blocking the entry of fatty acyl units into the mitochondrion for oxidation. The substrates for fatty acid oxidation, , inhibit fatty acid synthesis by interfering with the polymerization of acetyl-CoA . Hormonal effects on adipocytes are opposed: promotes fatty acid by several mechanisms; promotes fat breakdown and fatty acid .
Answer:
Malonyl-CoA, a key intermediate in fatty acid synthesis, inhibits carnitine acyltransferase I, thereby blocking the entry of fatty acyl units into the mitochondrion for oxidation.
Fatty acyl-CoAs, the substrates for fatty acid oxidation, inhibit fatty acid synthesis by interfering with the polymerization of acetyl-CoA.
Hormonal effects on adipocytes are opposed; insulin promotes fatty acid synthesis by several mechanisms; while glucagon promotes fat breakdown and fatty acid oxidation
g Feedback inhibition is important for the regulation of many metabolic pathways. Which of the statements are examples of feedback inhibition? The beginning of glycolysis is inhibited by high levels of ATP in the cell. The lac operon is not transcribed when there is no lactose present. An intermediate of glycolysis activates an enzyme downstream in the pathway. Arsenic binds to pyruvate dehydrogenase and inhibits the enzyme. The production of isoleucine is halted by the presence of excess isoleucine.
Answer:
-The beginning of glycolysis is inhibited by high levels of ATP in the cell.
-The production of tryptophan is halted by the presence of excess tryptophan.
Explanation:
Feedback inhibition is a regulatory mechanism in cells where the end product of a metabolic pathway inhibits an upstream process. Examples include the inhibition of glycolysis by high levels of ATP, lac operon transcription in the absence of lactose, and the production of isoleucine in the presence of excess isoleucine.
Explanation:Feedback inhibition is a regulatory mechanism in cells where the end product of a metabolic pathway inhibits an upstream process. Examples of feedback inhibition include:
The beginning of glycolysis is inhibited by high levels of ATP in the cell.The lac operon is not transcribed when there is no lactose present.The production of isoleucine is halted by the presence of excess isoleucine.These examples demonstrate how the cell regulates metabolic pathways to maintain balance and prevent unnecessary production.
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Please provide a legitimate answer and provide an explanation for the question below.
Patients with thyroid cancer often have their thyroid removed. After this surgery, they take hormone pills for the rest of their lives. Explain why these pills would be necessary.
Answer:
If they have their thyroid removed, they will have nothing in their body to regulate the thyroid hormones, therefore they will need pills to regulate the levels of hormones in the bloodstream
Describe the relationship between biotic and abiotic factors in marine ecosystems
Answer:
Biotic factors include plants, animals, fungi, algae, and bacteria. Abiotic factors include sunlight, temperature, moisture, wind or water currents, soil type, and nutrient availability. Ocean ecosystems are impacted by abiotic factors in ways that may be different from terrestrial ecosystems.
i hope this helps :)
Explanation:
The relationship between biotic and abiotic factors in marine ecosystems is that the abiotic component, which is the light, helps in the formation of the food by photosynthesis by the phytoplankton, and then other organisms take energy from this.
What is the significance of the different components of the marine ecosystem?In the marine ecosystem, there are both abiotic and biotic factors that coexist, for example, in the marine ecosystem, the abiotic components are the sunlight, water, and so on, which aid in the proper development of the biotic components such as phytoplankton, animals, and so on.
Hence, the relationship between biotic and abiotic factors in marine ecosystems is that the abiotic component, which is the light, helps in the formation of the food by photosynthesis by the phytoplankton, and then other organisms take energy from this.
Learn more about the components of the marine ecosystem here.
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Using terms and concepts that you have learned in this course, examine 10 aspects of your own diet, and explain any changes you may or may not make. For full credit, support each of your 10 choices with facts from the readings. (For example, currently, I rarely eat any nuts. So, I will start eating one ounce of nuts a day because it will improve my cholesterol level, which will reduce my risk for heart disease. Note: you may not use this example.) [30 points]
Explain how nutrients affect disease prevention and management. Make your answer specific with examples. Link the nutrient or nutrients you discuss to a condition.
Answer:
Increase awareness of what I eat
Explanation:
Eat more offal because it has CoQ 10. This is a powerful antioxidant and it will increase my energy and boost my immune system.Drink more green tea since it has theanine which is and amino-acid that will cross the blood brain barrier. This will increase my alertness and give me a sense of well-being.Eat more berries it has a wide range of differing antioxidants. It's important for scavenging reactive oxygen species in the body that could damage the cells.Drink more water flush toxins out. This will also keep me hydrated and keep the blood body levels normal. Eat more green leafy vegetables because it has iron, important for making haemoglobin.Eat more nuts it has magnesium and potassium which are important for over 300 enzymatic reactions in the body and also critical for mood, alertness, sleep and pain management.Eat more fish it has iodine which is a trace component but will support thyroid health and improve immunity.Switch to pink salt get trace minerals that are not always available in iodized salts. These are important for the conduction of electrical impulses in the brain and increase reaction response and shorten reaction time.Eat two hours before bed to reduce indigestion, this will also decrease weight gain as the food is moved along the digestive system long before it is time to go to sleep.Cut out refined carbohydrates to reduce empty calories and incorporate whole grain and natural sweeteners, if any. This provides a more nutrient dense diet and also provide plenty of fiber to aid digestion and bowel movements. It also provide food for the good gut bacteria that helps to improve our immune system.This answer examines ten different aspects of diet, including cereal and protein consumption, fruit and vegetable intake, and hydration, among others. The importance of each aspect and potential changes are discussed in light of their impact on overall health.
Explanation:The question relates to understanding how the food you consume directly impacts your health from a preventive and management perspective. Nutrients play a critical role in both disease prevention and management.
Here are ten different aspects of my own diet and potential changes:
Cereal consumption: I frequently consume cereal high in sugar. However, long term consumption of sugar can lead to obesity and type-2 diabetes. I'll decide to replace high-sugar cereal with low-sugar, whole grain options which provides more fibre. Fruit intake: My current fruit intake is low. Regular consumption of fruits lowers the risk of heart disease and stroke. I'll aim to have at least 2 servings of fruits daily. Vegetable intake: Vegetables are essential for good health because they are low in calories and high in vitamins, minerals and fiber. I'll try to incorporate more vegetables in my meals. Fatty food consumption: Excessive intake of fats can lead to obesity and heart disease. I'll replace unhealthy fats with healthier ones found in foods like avocados and fish. Protein intake: Proteins are critical for tissue repair and immune function. I'll ensure I get an adequate amount from lean meats, dairy, and plant sources. Hydration: Drinking plenty of water helps maintain body temperature and aids digestion. I'll aim to drink at least 8 glasses of water daily. Salt intake: Consuming excessive amounts of salt can lead to hypertension. I'll aim to reduce my salt intake by preferentially seasoning my food with herbs and spices. Portion control: Overeating, regardless of the nutritional quality of the food, leads to weight gain. I'll practice portion control to keep my calorie intake in check. Dairy intake: Dairy is rich in calcium, which is essential for bone health. I'll include adequate dairy in my diet to meet my calcium requirements. Alcohol consumption: Alcohol, while not a nutrient, can have significant effects on health. Moderate alcohol use may have heart benefits, but heavy use is harmful. Learn more about Nutrients and Health here:
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You are studying a population of snapdragon plants on Membata Island. In snapdragons, the dominant allele CR encodes red flowers and the recessive allele CW encodes white flowers. Plants with a heterozygous CRCW genotype have pink flowers. You have counted 10,000 snapdragon plants on Membata Island. You have recorded that 9025 plants have red flowers, 950 plants have pink flowers, and 25 plants have white flowers. If this population is at a Hardy-Weinberg equilibrium, what are the values of p and q in this population
Answer:
we will know that the allelic frequencies are for R 0.95 and r 0.05
Explanation:
We know that the population is in Hardy-Winberg equilibrium, we deduce the following formula:
p + q = 1
p2 + 2pq + q2 = 1
data
R: red flower allele
r: allele blor blanca
p would be equal to the allelic frequency R
q will be equal to the frequency allelic r
2p = RR
2q = rr
2pq = Rr
If there are 25 white flowers in 1000 plants, their frequency will be:
2pq frequency of the Rr genotype
white flower = 25/10000 = 0.0025 = rr = 2q = 0.0025
we deduce that q is equal to 0.05
we replace the data with the previous formula
p + q = 1
p = 1-0.05
we get as a result
p = 0.95
if p = 0.95 and q = 0.05
we will know that the allelic frequencies are for R 0.95 and r 0.05
Answer:
p = 0.95, q = 0.05
Explanation:
dominant allele CR encodes red flowers = p
the recessive allele CW encodes white flowers = q
Plants with a heterozygous CRCW genotype have pink flowers = 2pq
There are 10,000 snapdragon plants on Membata Island. 9025 plants have red flowers, 950 plants have pink flowers, and 25 plants have white flowers.
To find p = (9025 + 950/2) / 10000 = (9025 + 475) / 10000
p = 0.95
TO find q, use this formular: p+q = 1 since p = 0.95
q = 1-0.95 = 0.05
Different warbler species share the same food source. They have adapted by living in different areas of trees to reduce competition. What is this an example of?
Answer:
It is an example of co-evolution.
Explanation:
The situation given in the question is an example of co-evolution which can be described as two or more different species sharing a common habitat and affecting each others evolutionary process in different ways.
I hope this answer helps.
Compare and contrast a high pressure and a low pressure system.
Answer:
High pressure systems entail sinking air, while lows entail rising air. High pressure systems form where air converges in the higher levels of the atmosphere. The converging air has nowhere to go and is forced to sink toward the ground. ... In contrast, low pressure systems form where air near the ground converges.
Explanation:
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A ball is tossed up in the air. At its peak, it stops before beginning to fall. The ball at its peak has
kinetic energy only
light
4:07
potential energy only.
Tools
both kinetic and potential energy.
D)
neither kinetic or potential energy.
Answer:Potential energy only
Explanation:
The energy the ball possess at it peak height before beginning to fall is potential energy only
Pueden dos individuos con distinto genotipo tener el mismo fenotipo? en que casos?
Translation-Can two individuals with different genotypes have the same phenotype? in which cases?
Answer:
Yes. This is possible due to dominant allele.The phenotypic manifestation in an individual is as a result of genotypic combination or interaction. The genotype combination of a dominant allele on homologous chromosomes reflects dominance when the two allele are dominant(TT) or the other is heterozygote dominant (Tt).Thus they exhibit same phenotype ; tallness, since they are both tall,(T-represented) dominance but different gene combination (Tt ,TT.)
Thus, it is only in the absence of dominant allele that the recessive allele can be manifested, or if two recessive allele are inherited from each of the parent,as tt - homozygous recessive.