Answer:
C. IA i x IA IB
Explanation:
If one individual is with genotype IA i it means that it has A blood type. This is because IA allele is dominant over i allele. Another individual with genotype IAIB has th AB blood type because allele IA is codominant to allele IB (both alleles are expressed when are together in heterozygous).
P: IAi x IAIB
F1: IAIA IAIB IAi IBi
IAIA and IAi are genotypes that will give A blood (1/2)
IAIB- AB blood type (1.4)
IBi- B blood type (1/4)
Answer:
C) IA i x IA IB
Explanation:
The genotypes of the parents are (C) C. IA i x IA IB
This is because the mother has blood type A and possesses both the A and B alleles, but the father has blood type A but only carries the A allele. As a result, their offspring have a 50% probability of inheriting blood type A, 25% of getting blood type AB, and 25% of acquiring blood type B.
Furthermore, the offspring will not inherit blood type O since neither parent has the O gene. This genetic combination produces various potential blood types in their kids.
Xavier boiled 45 grams of water. If all of the water changed into a gas, what would be the weight of the water vapor?
Answer:
45 g
Explanation:
Conservation of matter.
Final answer:
Xavier boiled 45 grams of water and the weight of the resulting water vapor will also be 45 grams, as the mass remains constant when water changes state due to the Law of Conservation of Mass.
Explanation:
If Xavier boiled 45 grams of water and all of it changed into a gas (water vapor), the weight of the water vapor would still be 45 grams. This is because the Law of Conservation of Mass states that mass is neither created nor destroyed in a chemical reaction. When water boils and changes from a liquid to a gas, the substance is still water (H₂O), and thus the mass remains the same, just in a different state of matter.
What do cinders, ash, and lava all have in common?
They all travel thousands of kilometers by air after volcanic eruption.
They all flow slowly down the sides of volcanoes after eruption.
They are all different forms that magma takes after a volcanic eruption.
They are all formed during effusive, but not explosive, eruptions.
Answer:
I'd say it is C. They are all different forms that magma takes after a volcanic eruption
Explanation:
Magma is the liquid form of lava and ash and cinder come form the burning of matter. Hope this helps.
During volcanic eruptions, the particle remaining of the solids is called ash while partially or predominantly burned out material from incomplete combustion of woods and coal results in cinders.
Cinders, ash and lava are all different forms that magma takes after a volcanic eruption.
The substances can be explained as:The volcanic eruptions results in the flow of a hot liquid called lava from the beneath layers of earth and the burnt material are in the form of ashes.The burnt particle of wood and coals are called cinders and together with ash and lava are the forms of magma and burning of matter.Therefore, option C is the correct statement.
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What does the right side of the brain control
Answer:
The right side coordinate the left side of the body and helps in comparisons, rough calculations and has to do with art and creativity.
Explanation:
The brain is made up of two hemispheres which include right and left hemisphere. Thus, each of the hemispheres is connected together by bundles of nerve fibers. However, right hemisphere is commonly refers to as analog brain that coordinate the left side of the body. Furthermore, the right side of the brain helps in comparisons, rough calculations and has to do with art and creativity. Similarly, it is responsible for the control of reasoning, attention, problem solving and memory.
Variations in the size and shape of cells within a single species of bacteria is known as ______.
Answer: Pleomorphism
A medical researcher compared the variances in birth weights for five randomly chosen babies of each gender, with the megastat results shown below. the population variances:
Answer: do it yourself
Explanation:
A student crosses two true-breeding pea plants, one with green pods and the other with yellow pods. If yellow is dominant over green, what phenotype results will the student find in the F1 generation?
A. 75% yellow, 25% green
B. 75% green, 25% yellow
C. 100% green
D. 100% yellow
Answer: Its D 100% yellow
Explanation:
g g
Y Yg Yg
Y Yg Yg
In this cross-yellow color of pods showing dominant trait over the green color pod, all the progeny shows the yellow color phenotype, hence option D is correct.
What is a dominant trait?According to the law of dominance, dominant traits in alleles mask the feature of the recessive allele.
In the given question yellow color of the pod shows the dominant trait, so it will mask the character of a recessive allele which is shown by green pods.
During the cross in the F1 generation recessive character is not expressed by the allele and after this generation, it will express.
Cross between parents: YY x gg
Gametes: Y and g
Phenotypes: all the progeny will be 100% yellow
Genotypes: Yg, Yg, Yg, Yg
The cross is attached in the image below.
Therefore, 100% yellow is the result of the F1 generation, hence option D is correct.
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Under normal conditions which organisms in this community would have the greatest
The process of making rna from dna is called
Answer: DNA transcription
Transcription is the process where RNA is created from DNA using RNA Polymerase. This creates an mRNA strand carrying genetic instructions which will be translated into a protein during translation.
Explanation:The process of creating RNA from DNA is known as transcription. This process involves an enzyme known as RNA Polymerase which unzips the DNA's double helix structure to use one strand as a template for building an mRNA molecule. The constructed mRNA molecule carries genetic instructions from the DNA and these instructions will subsequently be read by ribosomes in the protein synthesis process, also known as translation.
Transcription can be divided into three main stages: initiation, elongation, and termination. During initiation, the RNA Polymerase attaches to a specific area on the DNA strand. For elongation, the enzyme moves along the DNA template, synthesizing a new mRNA strand in a 5' to 3' direction. Once the RNA Polymerase encounters a termination signal on the DNA, transcription stops, and the mRNA molecule is released.
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The two main neurotransmitters of the autonomic nervous system are
I believe that they’re norepinephrine (NE), and the acetylcholine (Ach). Hope this helps!
The autonomic nervous system uses two key neurotransmitters, acetylcholine (ACh) and norepinephrine. They are released by the fibers of the sympathetic and parasympathetic divisions, binding to specified receptors on the target cells.
Explanation:The two main neurotransmitters of the autonomic nervous system are acetylcholine (ACh) and norepinephrine. Sympathetic and parasympathetic divisions of the autonomic nervous system have both types of neurons. The pre-ganglionic fibers release ACh and these fibers have nicotinic receptors in their cell membranes. Postganglionic parasympathetic fibers also release ACh, but the receptors on their targets are muscarinic receptors. On the other hand, postganglionic sympathetic fibers release norepinephrine, which binds to adrenergic receptors on the target cell. The exception is the fibers that lead to sweat glands and blood vessels associated with skeletal muscles, which release ACh.
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Przyjrzyj siê zdjêciom a nastêpnie zapisz zgodnie z przyk³adem w jakiej formie wystepuj¹ przedstawione na ich rosliny okrytonasienne
Answer:
Proszę podać zdjęcie wraz z pytaniem.
_______ has a greater partial pressure in the pulmonary capillaries than in the alveoli
Answer:
CO2
Explanation:
Diffusion is a simple process of molecular movement, from their higher concentration to the area with their lower concentration. The process of CO2 movement from the pulmonary capillaries into the alveoli is part of the gas exchange (together with oxygen movenent in opposite direction) and it is actually simple diffusion. Alveoli have huge surface area, thin cell walls and a lot of blood vessels around them. All of these are adaptations that facilitate gas exchange. There is a gradient in partial pressure of the CO2: it is much higher in the pulmonary capillaries than in the alveoili so it moves down its gradient-from the blood to the alveoli (exhale).
Carbon dioxide has a greater partial pressure in the pulmonary capillaries than in the alveoli. This pressure difference allows the carbon dioxide in the capillaries to move to the alveoli and be exhaled.
Explanation:The substance with a greater partial pressure in the pulmonary capillaries than in the alveoli is Carbon Dioxide (CO₂). This disparity arises because the partial pressure of carbon dioxide in the pulmonary capillaries is about 45 mm Hg, while its partial pressure in the alveoli is roughly 40 mm Hg. The pressure gradient facilitates diffusion, allowing CO₂ to move from the blood of the capillaries into the alveoli, where it can then be expelled from the body during exhalation.
This is a contrasting scenario to oxygen (O₂), which has a lower partial pressure in the pulmonary capillaries (40 mm Hg) compared to the alveoli (104 mm Hg). Consequently, due to the pressure gradient, O₂ moves from the alveoli into the capillary's blood, where it bonds to hemoglobin in red blood cells and is transported to tissues throughout the body.
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Which of the following is a possible advantage for the environment of having farmers use plants that genetically produce Bt toxin?A) Plants with genes for the toxin are eaten less often by insects, and therefore less insecticide is needed.B) Plants that produce Bt toxin must be grown from new seeds each season, and therefore fewer of them are planted.C) Bt toxin is advantageous to many species of invertebrates that grow in the same fields.D) Harvesting plants with these genes is less disturbing to the soil layers where they are planted.E) Plants with these genes must be sprayed with the organism, but need much less than other plants.
Answer:
A) Plants with genes for the toxin are eaten less often by insects, and therefore less insecticide is needed.
Explanation:
Bt endoxin is lethal for some insects that ingest it (it is effective insecticide). Because of that, gene for the toxin is often used in the genetic engineering of certain plants, in order to reduce the use of pesticides. Unlike pesticides, which are unspecific (kill all insects, even those benefitial), Bt plants are a bit more specific.
Another advantage is that it has been shown that Bt corn is safe for human consumption.
Choose the word that best completes this sentence. ________ can only grow and multiply within the cells of another living thing
Answer:
The word that best complete the sentence is VIRUSES.
Explanation:
There are different types of microorganisms, one of them is virus. Viruses are different from other forms of microbes because they need living cells to become active; outside living cells they are inactive and did not exhibit any of the features of living things.
Viruses only grow and multiply when they are withing the cells of another living thing; they do not have the capacity to survive and reproduce outside a living host.
The airway that connects the larynx to the bronchial tree is the
Trachea connects the larynx to bronchial tree.
An experiment is performed on plants to see how different liquids affect plant growth. Each plant in the experiment is given a different liquid; water, apple juice, or milk. Each plant has the same amount of soil, sunlight, and listens to the same music. In this investigation, the independent variable is ...
The type of plant.The amount of sunlight.The type of music.The type of liquid
Answer:
the type of liquid
Explanation:
All the other variables are the same
The independent variable in this experiment is the type of liquid used.
INDEPENDENT VARIABLE:
Independent variable in an experiment is the variable that is changed or manipulated by an experimenter. The independent variable causes an response in the dependent variable. In this experiment performed on plants to see how different liquids affect plant growth, different types of liquids such as water, apple juice, or milk are used. This means that the type of liquid was the variable that was changed in this experiment, hence, it is the independent variable.Learn more at: https://brainly.com/question/17498238?referrer=searchResults
Which sequence of events describes natural selection? Which sequence of events describes natural selection? A population of a mammal species varies in the length of their legs; water levels rise and the habitat becomes swampy; the individuals with shorter legs are better able to swim to food; the population evolves to become shorter-legged. A population of a mammal species lives near the water; water levels rise and the habitat becomes swampy; the act of swimming shortens the legs of the mammals; the offspring of the mammal species have shorter legs. A population of a mammal species lives near the water; water levels rise and the habitat becomes swampy; the animals have trouble moving in the water; the population changes to a shorter-legged type so they can move more easily in the water. Water levels rise, and a habitat becomes swampy; a population of a mammal species on high ground observes the change; individuals with shorter legs migrate to the area.
Answer:
i dont know maybe exall.4
Explanation:
the way its made is unusual but its correct to sell if its 97 degrees at all times
im 50% sure
Olfactory sensory neurons are short-lived and, therefore, replaced frequently. how does this turnover happen?
Mitotic division and differentiation of basal epithelial cells.
Which type of neuron carries impulses from sense organs to the spinal cord or brain?
A. motor neuron
B. sensory neuron
C. association neuron
B SENSORY NEURONS The cell body of sensory neurons is outside the CNS in ganglia
In which of the following environments would you NOT expect to find fossils? (2 points)
Active volcanic islands
An area with high concentration of sedimentary rocks
The Grand Canyon
A shallow ocean
You would generally not be able to recover fossils from volcanic or plutonic rock, so looking around in an area on active volcanic islands would yield nothing.
You always want to look in the layers of sedimentary rock for fossils. The Grand Canyon would be a great place to see these layers as well as a shallow ocean because you may find the remains of prehistoric shark teeth or bones protruding through the surface of the sand.
The answer is Active volcanic islands.
If this is a question in which you can choose more than one answer it may be smart to also choose a shallow ocean as well. This is because it is difficult to get the tools and materials necessary down in the water and would be difficult to get deep enough underneath sand to start digging into actual fossil bearing rock.
So in that case, the answer would then be both Active volcanic islands and A shallow ocean.
Which statement is true about rock changes over time?
Only rocks with a high degree of quartz in them can stop erosion.
Rock slides cause little damage.
All rocks can be subject to rock falls.
No rock is hard enough to resist the force of erosion.
Answer:
No rock is hard enough to resist the force of erosion.
Explanation:
Rocks like Granite, Diamonds, and just a pebble laying on the ground can be eroded over time. Even Mountains get eroded!
Answer:
C.
Explanation: promise
Endocrine cells
a. are modified connective-tissue cells.
b. are a type of nerve cell.
c. release their secretions directly into body fluids.
d. contain few vesicles.
e. release their secretions onto an epithelial surface.
b
I am not that sure but I think endocrine cell don't contain blood vessels
Hi! From my observations I believe that the answer to this is c (release their secretions directly into body fluids), they’re hormone-secreting cells that are scattered around various other epithelial cells in the mucosa of the stomach and small intestine. Have a nice day! I hope this helps!
Enzymatic catalysis of the peptide bond between the growing polypeptide and the next incoming amino acid takes place in which binding site?
Answer:
A site
Explanation:
During the process of translation, ribosomes play a major role in connecting mRNA codons with tRNA anticodons. Ribosomes are composed of two subunits which consist ofproteins and rRNA. The tree sites of ribosomes are:
P site or peptidyl site-this site binds to the tRNA which holds the growing polypeptide chain. A site or acceptor site-this is a site of peptide bond formation between the growing polypeptide and the next incoming amino acid E site or exit site-the site for the final binding of t-RNA .The general adaptation syndrome describes stages in the
Answer:
body??
Explanation:
The general adaptation syndrome describes stages in the body's response to stress: alarm, resistance, and exhaustion.
The general adaptation syndrome describes stages in the body's response to stress. It was first proposed by Hans Selye and includes three stages: the alarm stage, the resistance stage, and the exhaustion stage. In the alarm stage, the body recognizes a stressor and triggers the fight-or-flight response. In the resistance stage, the body adapts to the stressor and tries to restore homeostasis. In the exhaustion stage, if the stressor persists, the body's resources are depleted, leading to various health issues.
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In Europe, three lineages of bears evolved from a common ancestor. Two of those lineages led to present-day black bears and brown bears. The third lineage led to cave bears that went extinct 24,000 years ago. Which of the following could explain why only one group of bears went extinct? A. Individual cave bears must not have been able to adapt to changing conditions as quickly as brown or black bears. B. One group of bears was less highly evolved than the other two groups and was destined to die out. C. Some environmental change severely threatened cave bear survival but not the survival of brown or black bears. D. Random chance led to the extinction of cave bears and survival of brown and black bears.
Answer: A Individual cave bears must not have been able to adapt to changing conditions as quickly as brown or black bears.
Explanation:
If an any living thing can not adapt to its surroundings, then the species will go extinct as it will no longer be able to survive in those surroundings. Brown and black bears were able to adapt to the changing conditions and thus survived until today.
Final answer:
The extinction of cave bears, in contrast to the survival of black and brown bears, is most plausibly explained by environmental changes that severely threatened cave bear survival. Factors such as adaptation capabilities, dietary flexibility, and impact of human expansion play significant roles in the survival or extinction of species.
Explanation:
The question asks why only one group of bears went extinct, given that three lineages evolved from a common ancestor in Europe, leading to present-day black bears, brown bears, and the now-extinct cave bears. There are several explanations for the extinction of only one group, but the most plausible reason is related to environmental changes and adaptation. Specifically, Option C: Some environmental change severely threatened cave bear survival but not the survival of brown or black bears, is a compelling explanation. This is supported by historical evidence indicating that environmental changes have played a significant role in the extinction of species, including large mammals, during periods of climate change and human expansion. The ability of species to adapt to changing environments, dietary flexibility, and geographical spread also significantly impact their survival. Unlike their relatives, cave bears may have had more specialized needs or were unable to adapt as effectively to changing conditions, leading to their extinction approximately 24,000 years ago.
Identify landform E explain how it forms and tell whether it is the result of erosion or deposition
Answer:
E is a barrier beach. It forms by deposition, when sand carried by incoming storm waves piles up parallel to the shore and above sea level.
Final answer:
Glaciers form landforms through erosion and deposition. Erosional features include U-shaped valleys, aretes, and horns, sculpted by the glacial movement, while depositional features include drumlins and moraines, created from sediment left as glaciers retreat.
Explanation:
Landform E likely refers to a specific type of landform on a map or diagram provided in the material. Since the specific landform is not mentioned, we will discuss how glaciers form and create certain landforms through erosion and deposition. Glacier formation begins when snow persists year-round and compacts over time into dense, thick ice masses. Continental glaciers cover vast land areas while valley glaciers flow like rivers down mountain valleys.
Glaciers cause erosion by plucking and abrading the rock beneath them. As glaciers move, they carry with them rock fragments that function as abrasive tools, smoothing and sculpting the land into features such as U-shaped valleys and fjords. In contrast, erosional glacial landforms include aretes, horns, and cirques formed by the glacial movement.
When glaciers retreat, they leave behind depositional landforms made of sediments called till. Examples of landforms deposited by glaciers are drumlins, eskers, and moraines. These formations are the result of glacial deposition, indicating where glaciers have dropped their load of sediment. Determining whether Landform E is a result of erosion or deposition depends on the specific type of landform described, which could range from a glacial valley (erosion) to a moraine (deposition).
Which description is NOT consistent with the sympathetic division?
long postganglionic fibers
ganglia close to the spinal cord
thoracolumbar
most innervation from the vagus nerve
most innervation from the vagus nerve
The vagus nerve innervates most of the parasympathetic division.
Answer:
most innervation from the vagus nerve
Explanation:
Peripheral nervous system consists of all the neurons and ganglia within the body, outside the central nervous system. It is divided into:
Somatic nervous system- it controls the movements of skeletal muscles which means that this nervous system is under the voluntary controlAutonomic nervous system- its role is to control involuntary movements of smooth muscles and glandsAutonomic nervous system consists of:
sympathetic nervous system -responsible for the "fight and flight" reactions (stressful situations but also for maintaining homeostasis)parasympathetic nervous system -opposite to sympathetic system, responsible for "rest and digest" reactions (body activities at rest)enteric nervous system-controls digestionThe description that is NOT consistent with the sympathetic division is 'most innervation from the vagus nerve'. The vagus nerve primarily serves the parasympathetic division.
Explanation:The description that is NOT consistent with the sympathetic division is 'most innervation from the vagus nerve'. The sympathetic division of the autonomic nervous system (ANS) is characterized by its thoracolumbar division and its ganglia being close to the spinal cord. It also features long postganglionic fibers. However, the vagus nerve primarily serves the parasympathetic division of the ANS, not the sympathetic division. Therefore, this description is inconsistent with the sympathetic division.
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Mechanisms to bring an elevated body temperature down to the normal level include
If two organisms possess similar structures that serve similar functions but don't possess a common ancestor that shared that structure, then the structures are classified as A. homologous. B. morphologies. C. vestigial. D. analogous.
Answer:
D. analogous.
Explanation:
Analogous organs can be defined as organs, which show similar functions, but do not having common origins. Organisms that possess analogous organs do not share common ancestor as their organs are derived from different origins.
Examples of analogous organs include wings of bats, birds, and birds which are evolved independently, but share common function (flying).
Thus, the correct answer is option (D).
Answer:
D. analogous
Explanation:
Analogous organs can be defined as organs, which show similar functions, but do not having common origins. Organisms that possess analogous organs do not share common ancestor as their organs are derived from different origins.
Examples of analogous organs include wings of bats, birds, and birds which are evolved independently, but share common function (flying).
Over evolutionary time, many cave-dwelling organisms have lost their eyes. Tapeworms have lost their digestive systems. Whales have lost their hind limbs. How can natural selection account for these losses?A. Natural selection cannot account for losses, only for innovationsB. It can account for these losses by the principle of use and disuseC. Under particular circumstances that persisted for long periods, each of these structures presented greater costs than benefitsD. These organisms had the misfortune to experience harmful mutations, which caused the loss of these structures over a few generations
Answer:
C. Under particular circumstances that persisted for long periods, each of these structures presented greater costs than benefits
Explanation:
Natural selection is evolutionary mechanism which favors traits (structures, behavior) of an organism that help him survive and reproduce. But, when there are some structures of an organism that are useless, selective pressure acts against them. Structures that don't contribute to an organism’s survival and reproduction, but are not directly harmful will take long time to be eliminated.
In response to seasonal changes in temperature, many organisms must alter the composition of their plasma membranes to maintain the proper degree of fluidity. As summer turns to fall and eventually into winter, which of the following would you predict you would observe in the plasma membranes of organisms that are unable to regulate their body temperature?A. an increase in phospholipid fatty acid side chain length and an increase in side chain saturationB. a decrease in phospholipid fatty acid side chain length and an increase in side chain saturationC. a decrease in phospholipid fatty acid side chain length and a decrease in side chain saturationD. an increase in phospholipid fatty acid side chain length and a decrease in side chain saturation
Answer:
C. a decrease in phospholipid fatty acid side chain length and a decrease in side chain saturation
Explanation:
Temperature is a factor that has a huge impact on cell membrane structure, more precisely its fluidity. So, for example, if temperature increases, the cell membrane becomes more fluid because the fatty acid tails of the phospholipids become less rigid.