Answer:
Option-D
Explanation:
Parkinson's diseases are a neural disorder which affects the movement of the human body. The disease is caused by the low production or no production of dopamine by the neurons which thus interfere with the impulse transfer and thus movement.
In the given question, the patient with Parkinson's disease is provided with levodopa but no improvement is observed therefore the prescriber must change the drug regimen, for example, the levodopa should be given in combination with carbidopa. These medications enter the blood-brain barrier and get converted to the dopamine.
Thus, Option-D is the correct answer.
GPCRs are receptor proteins found in the plasma membrane that are important for cellular communication. What cellular structure makes GPCRs?
Answer:
The rough endoplasmic reticulum
Explanation:
The rough endoplasmic reticulum has structures called ribosomes attached to them. Proteins which are to be made and transported are made in the ribosomes of the rough endoplasmic reticulum. The proteins are made by the ribosomes and modified by the rough endoplasmic reticulum. From the rough endoplasmic reticulum, the proteins move to the Golgi complex where they are packages to be moved. GPCRs proteins are also produced by the rough endoplasmic reticulum just like the other proteins.
Many fad treatments for autism spectrum disorders make the parents feel good that they are trying something, but otherwise, they are a waste of time and money.
Answer:
The statement is true.
Explanation:
The question is incomplete, here is the full question:
Many fad treatments for autism spectrum disorders make the parents feel good that they are trying something, but otherwise, they are a waste of time and money.
Is the statement true or false?
The given statement above is true because there are currently no known treatments or medicines discovered to treat Autism Spectrum Disorder (ASD) and most of the things the patients get recommended are only able to help with basic symptoms such as seizures or allergies etc. so the statement that they are a waste of time and money can be considered true.
I hope this answer helps.
During the repolarization phase of an action potential which of the following is the primary activity in the membrane of the post-synaptic cell?
During the repolarization phase of an action potential, the primary activity involves the opening of voltage-gated K+ channels, which facilitate the exit of K+ ions from the cell. This activity helps return the membrane potential to its rest state, following depolarization and a brief period of hyperpolarization.
Explanation:The primary activity in the membrane of the post-synaptic cell during the repolarization phase of an action potential involves the voltage-gated K+ channels. After the peak of the action potential, these channels open, allowing K+ to leave the cell, which facilitates repolarization. It's crucial to understand that the repolarization phase is characterized by the return of the membrane potential to its rest state, following a brief period of hyperpolarization. Therefore, during this phase, the essential event happening in the membrane is the outflow of potassium ions (K+).
Depolarization, the prior phase, occurs when the sodium channels open, and Na+ ions rush into the cell, pushing the membrane potential towards a more positive value. However, these sodium channels close at the peak of the action potential, and the potassium channels then open, starting the repolarization process.
The membrane repolarization is previously set in motion due to the voltage-dependent closure of sodium channels, which halts the influx of sodium ions (Na+), and the opening of potassium channels, thereby initiating the exit of potassium ions (K+) from the cell. Rules of diffusion and the ions' natural tendency to move towards an area of lower concentration drive this movement, leading to the restoration of the resting membrane potential.
Learn more about Repolarization here:https://brainly.com/question/35868271
#SPJ3
In addition to having a 50% chance of inheriting autosomal dominant disorders from an affected parent, such a disorder is characterized by:
Answer: In addition to having a 50% chance of inheriting autosomal dominant disorders from an affected parent, such a disorder is characterized by equal frequency of occurrence in both sexes (male and female).
Explanation: Autosomal dominant disorder has the following characteristics;
1. Appears in both sexes with equal frequency.
2. Does not skip generations.
3. Affected offsprings must have an affected parent unless they possess a new mutation.
4. Unaffected parents do not transmit the disorder.
5. When one parent is affected (heterozygous) and the other parent is unaffected, approximately 50% of the offsprings will be affected.
Your lab microscope is "parfocal." What does this mean?
A - the specimen is clearly is focus at this depth.
B - the slide should be almost in focus when changing to higher magnifications
C - you can easily discriminate two close objects as separate
Answer: The correct answer is that the specimen is clearly is focus at this depth.
Explanation:
A 'parfocal' microscope has the specimen to be viewed in focus, and easily viewed from the angles of several lenses positionally directed on it.
Thus, you NEED NOT move the specimen or slide to have the best view.
The term 'parfocal' refers to a feature of a microscope which allows the specimen to remain in focus when switching between different magnification levels.
Explanation:When a microscope is described as 'parfocal', it means that the microscope keeps the specimen in focus even as you switch between different objectives with varying magnifications. Typically, on a parfocal microscope, if your specimen image is focused at low power, you should be able to rotate to the next objective lens and have the specimen remain almost perfectly in focus. Thus, the correct answer is option B - the slide should be almost in focus when changing to higher magnifications.
This feature is particularly useful as it reduces the need for constant refocusing and allows you to analyze your specimen at different levels of detail without losing the focused image. It's a characteristic common in many laboratory and research microscopes.
Learn more about parfocal here:https://brainly.com/question/26346205
#SPJ12
The nurse is teaching the parents of a newborn prior to a heel stick. The nurse is describing the procedure and recommending various ways the parents can comfort their baby. Which of the following statements by the parents indicates a need for further teaching?A) "It's better if we are not in the room for this."B) "We can use kangaroo care before and after."C) "We hope you are using a very tiny needle."D) "We can offer him nonnutritive sucking to calm him.
Answer:
Option (A).
Explanation:
The new born parents require proper education to understand the behavior and importance of the needs of their child. Parents can hire professionalist as well.
The statement that they will not present in the room shows the contradiction. The parents should provide their presence to the child and makes him feel comfort by their touch. During the atruamatic care, teh child may get frighten and requires the parents presence.
Thus, the correct answer is option (A).
____ in the brain and spinal cord and ____ in the periphery are specialized types of glia that build the myelin sheaths that surround neurons.
Answer:
Oligodendrocytes in the brain and spinal cord and Schwann cells in the peripheral nervous system are specialized types of glia that build the myelin sheaths that surround neurons.
Explanation:
Myelin sheath is an insulating layer, which covers neurons. It is made up of protein and fatty substances. This myelin sheath permits electrical impulses to move very fast along the neurons.
in order to maintain blood glucose homeostasis, which of the following events would likely occur in response to a significant rise in blood glucose.True/false
Answer:
False
Explanation:
The pancreas secretes insulin and glucagon. Both hormones work in balance to play a vital role in regulating blood sugar levels. If the level of one hormone is higher or lower than the ideal range, blood sugar levels may spike or drop.
A relationship between a male and female living in a pair bond for an extended period of time is called __________.
A. polygyny
B. one-male polygyny
C. monogamy
D. polyandry
Answer:
C. monogamy
Explanation:
Polygyny : It is defined as a pattern of mating in which a male has more than one female mate i-3 two or more women share a common husband.
One-male polygyny : It is defined as the mating system in which one male lives with multiple females and also mates with them but each of the female mates only with a single male.
Monogamy** : It is defined as practice of marrying or state of being married to one person at a time i-e having a sexual relationship with only one partner and the habit of living with one mate at a time.
Polyandry : It is basically a polygyny in which a woman has more than one husbands.
As in the above scenario, only option C matches the required credentials.
Hence option C) Monogamy is the right answer.
As Joe prepares to spar with a tae kwon do opponent, his heart rate and respiration rate increase. These are indicators that which branch of the nervous system has been activated?
a. central
b. autonomic
c. parasympathetic
d. sympathetic
Answer:
d. Sympathetic
Explanation:
Sympathetic is a division of the autonomic nervous which controls the inside of the body unconsciously . Its' main or primary process is to stimulate the body's fight-flight-or-freeze response. It is normally active to maintain homeodynamics of homeostasis.
In the question, Joe is preparing to spar with an opponent. He will need the fight-flight-freeze response, the Sympathetic nervous system will be activated.
Increased heart and respiration rates as seen during physical activities are driven by the activation of the sympathetic nervous system, which is one of the two branches of the autonomic nervous system.
Explanation:As Joe prepares to spar with his tae kwon do opponent and experiences an increase in heart and respiration rates, it is the sympathetic branch of the nervous system that gets activated. The two major divisions of the autonomic nervous system are the parasympathetic and sympathetic nervous systems. The parasympathetic system is responsible for 'rest and digest' actions, while the sympathetic system stimulates 'fight or flight' responses like increasing heart rate and respiration rate in stressful or physically demanding situations, like a tae kwon do match.
Learn more about Sympathetic Nervous System here:https://brainly.com/question/33918979
#SPJ3
Imagine a newly discovered biological molecule that is mostly hydrophobic in its structure. This new molecule will most likely be classified as a___________.
Complete question:
Imagine a newly discovered biological molecule that is mostly hydrophobic in its structure. This new molecule will most likely be classified as a___________.
a. Proteins
b. Lipids
c. Nucleic acids
d. Carbohydrates
Answer:
b. Lipids
Explanation:
Lipids are the biomolecules that are mostly nonpolar in nature. Storage lipids such as fatty acids and oils have small or long chains of hydrocarbons. This makes them largely hydrophobic. Similarly, phospholipids have fatty acid chains that make their hydrophobic component. Steroids are also the lipids that have a distinct sterol nucleus in their structure. This makes then hydrophobic. Therefore, most of the lipids have structural components that make them largely hydrophobic molecules. So, the newly discovered molecule is most likely a lipid.
Nearly all cells in an organism contain identical DNA, and each DNA strand may contain hunndreds or thousands of individual genes. Is it likely that a cell would transcribe all the genes within its nucleus simultaneously.
A. True
B. False
Nearly all cells in an organism contain identical DNA, and each DNA strand may contain hundreds or thousands of individual genes. It is likely that a cell would transcribe all the genes within its nucleus simultaneously.
A. True
B. False
Answer:
B. False
Explanation:
All the cells present in the bodies of the multicellular organisms are derived from the zygote and therefore carry identical DNA. However, cells are differentiated to perform specific functions. Also, cells may perform different functions at different times depending upon the need of the body. So, all the genes present in the DNA of a cell are not expressed simultaneously. Cells only express the genes whose protein products are required at that time.
For example, genes required for secretion and release of insulin in the endocrine cells of the pancreas would be expressed only when the blood glucose levels are higher.
When Avery and his colleagues had obtained the transforming factor from the IIISIIIS virulent cells, they treated the fraction with proteases, ribonuclease, and deoxyribonuclease, followed by the assay for retention or loss of transforming ability.
The mentioned question is not complete. The complete question is:
When Avery and his colleagues had obtained the transforming factor from the IIIS virulent cells, they treated the fraction with proteases, ribonuclease, and deoxyribonuclease, followed by the assay for retention or loss of transforming ability. What were the purpose and results of these experiments? What conclusions were drawn?
Answer:
The objective of treating the extraction with RNAse, proteases, and DNAse was to purify the fraction by selectively withdrawing protein, RNA and DNA. So, that it could be determined that what is the exact macromolecule, which was converting the avirulent cells into virulent cells. This is due to the fact that after degrading the macromolecule with the precise enzyme the conversion rate should have declined to zero if it was essential for transformation.
The outcomes of the Avery experiment had demonstrated that after the fraction was mixed with protease and RNAse the mixture was still possessing the tendency to convert the avirulent strain. However, when the DNAse was supplemented, the rate of transformation reduced, and there was no more transformation detected.
It was concluded by Avery and his colleagues that the DNA was the macromolecule accountable for the process of transformation as when it was degraded with DNAse in the extract transformation got ceased.
Select all of the examples that represent biological evolution.
1. Horses that get more exercise become stronger and will have foals that are stronger.
2. The number of individuals with the type O blood genotype increases in a small human population due to a reduction in population size.
3. One species from the mainland diverges into two distinct species on a group of islands.
4. Individuals in a population exposed to high levels of ultraviolet light become blind as adults and will have offspring that are also blind.
5. The frequency of the gene for sickle-cell anemia in a human population decreases from 0.002% to 0.001%.
Answer:
The correct answer is - option 2, 3, and option 5.
Explanation:
Biological evolution is the change in genetic level of an individual population that is developed or inherit over a period of time and several generations. Changes can be minute, large, can be identified or not noticeable.
In the given question some of the examples of biological evolution are given such as O genotype individuals increases due to the reduction in population size in the small human population, similarly, one species diverged into two different species on the basis of the adaption they developed in island. Sickle cell anemia frequency is also is an important example of the as it decreases over time.
Thus, the correct answer is - option 2, 3, and option 5.
Out of the provided scenarios, the representation of biological evolution can be identified in the instances where the type O blood genotype increases in a population due to genetic drift, one species on a mainland diverges into two species on an island, and the frequency of the sickle-cell anemia gene decreases in a population. So the correct option is 2,3 and 5.
Explanation:The question asks us to identify examples that represent biological evolution. Biological evolution is defined as a change in the genetic composition of a population over time due to processes such as natural selection, mutation, genetic drift, and gene flow.
Horses that get more exercise become stronger and will have foals that are stronger - this is not an example of biological evolution because it describes acquired characteristics, not genetic changes passed on to offspring.The number of individuals with the type O blood genotype increases in a small human population due to a reduction in population size - this could represent evolution through genetic drift, especially if the population reduction leads to the founder's effect or a genetic bottleneck.One species from the mainland diverges into two distinct species on a group of islands - this is an example of allopatric speciation, a process of evolution.Individuals in a population exposed to high levels of ultraviolet light become blind as adults and will have offspring that are also blind - unless the blindness is due to a genetic mutation passed on to the offspring, this is not an example of evolution, rather an example of an environmentally induced condition.The frequency of the gene for sickle-cell anemia in a human population decreases from 0.002% to 0.001% - this represents evolution as there is a change in allele frequency in the population.Thus, instances 2, 3, and 5 would be the examples of biological evolution.
An instructor is explaining to a group of students the way in which muscles and their associated tendons can be so strongly attached. The instructor makes references to the role of the basal lamina. Which statement most accurately captures an aspect of the basal lamina?A) It is produced by the connective tissue adjacent to it.B) It is present where connective tissue contacts the tissue it supports.C) It is found solely between connective tissue and muscle fibers.D) It is also known as the basement membrane.
Answer:
B) It is present where connective tissue contacts the tissue it supports
Explanation:
Basal lamina is an extracellular matrix layer which is secreted by the epithelial cells on which the epithelium rests.The basal lamina is a scaffold anchoring epithelial cells, muscles, and nerve cells. Both basal cells in epithelia bind to the underlying basal lamina, which in turn is attached to the underlying connective tissue.
In the glycocalyx, __________ act like identification tags that enable the body to distinguish its own cells from foreign and diseased cells.
Answer:
glycoproteins
Explanation:
Glycoproteins are the proteins to which carbohydrates are attached. The glycocalyx is the covering made up of sugar residues of glycoproteins and glycolipids and is associated with the plasma membrane.
Glycoproteins of animal cells are exposed to the extracellular surface and are involved in cell recognition. They serve as a tag by which the cells are identified. For example, the glycoproteins of bacterial cells serve as antigens that are recognized by the cells of the immune system of humans. However, these cells recognize the glycoproteins present on the cells of own body as "Self". Likewise, specific glycoproteins present on the surface of RBCs determine the blood type as A, B, AB or O.
Glycoproteins and glycolipids in the glycocalyx serve as identification tags, helping the body distinguish its own cells from foreign ones which aids in immune responses and organ transplants.
Explanation:In the glycocalyx, glycoproteins act like identification tags that enable the body to distinguish its own cells from foreign and diseased cells. These glycoproteins are found on the outer surface of the cell membrane and contain sugar molecules. The unique arrangement of these sugars helps the immune system recognize self from non-self.
Learn more about glycoproteins here:https://brainly.com/question/32566319
#SPJ3
True or False. DNA cloning techniques have made it possible to locate , map them, isolate them, sequence them, and transfer them between species.
Answer: True
Explanation:
The DNA cloning techniques have made the manipulation of genes possible. The cloning of DNA have made it possible that new organism can be made which is genetically identical to the organism from which it is being cloned.
The manipulation of the gene for the mixing and matching of genes is also possible with the help of the cloning.
It is one of the application of genetic engineering which allows to map, manipulate and transfer genes among organism.
4. What do you think would happen to the intended protein if there were a DNA mutation whereby
one of the nitrogen bases (A, T, G, C) were replaced by a different one?
Some different proteins will be produced from the gene.
Explanation:When one of the nitrogen bases of a DNA is replaced by another, the phenomenon is called a point mutation. This condition actually is a mutation because, a gene translates into a protein through the mRNA. Now the DNA transcribes into a mRNA. If one of the nitrogen bases are changed in DNA, it will lead to change in the corresponding base of mRNA too. So the codon of which the changed nitrogen base is a part of, also changes which now codes for a different amino acid. So the protein structure also changes.
This condition is actually seen in sickle cell anaemia, where the 6th amino acid of haemoglobin changes from glutamic acid to valine, and the RBC structure becomes sickle celled owing to a hydrogen bond between valine and other amino acids.
Final answer:
A DNA mutation where one nitrogen base is replaced by another, known as a substitution mutation, might not change the protein if the amino acid remains the same (silent mutation). However, if it results in a different amino acid (missense mutation) or a stop codon (nonsense mutation), it could significantly impact the structure and function of the protein.
Explanation:
When a DNA mutation occurs that results in the replacement of one of the nitrogen bases (A, T, G, C) with a different one, this is known as a substitution mutation. The consequences of such a mutation on the intended protein primarily depend on whether the mutation leads to a change in an amino acid that is encoded by the affected DNA segment. Since the genetic code is degenerate, meaning that some amino acids are encoded by more than one codon, it's possible that a substitution might not change the amino acid sequence of the protein (silent mutation). However, if a different amino acid is encoded (missense mutation), this could alter the protein's structure and functionality. In more severe cases, if the mutation results in a stop codon (nonsense mutation), it could lead to the premature termination of protein synthesis, generating a truncated, often nonfunctional protein.
An example of how a seemingly small change can have significant effects is the substitution mutation in the hemoglobin gene that leads to sickle-cell anemia. Here, a single base change causes a different amino acid to be incorporated into the hemoglobin protein, drastically affecting its function and shape.
Some organisms living in the high water portion of the intertidal zone cannot survive in the supralittoral zone because
they ________. 6) _____
A) have planktonic larval forms
B) are sessile
C) cannot tolerate desiccation or drying out
D) cannot tolerate temperature fluctuations
E) cannot tolerate fluctuating salinity
Answer:
The correct answer is - option A.
Explanation:
Some of the organisms that are living in the high water portion of the inter-tidal zone adapted several characteristics so they can develop the survival in such condition such as planktonic larval forms.
On other hand supra-littoral zone, the area above the high tide line on coast side. Due to planktonic larval forms these organism can not survive such zone.
Thus, the correct answer is - option A.
Seizures that involve both hemispheres at the outset are termed a. complex. b. generalized. c. partial. d. focal.
Answer:
b. generalized
Explanation:
Generalized seizure is a type of seizure that is caused by an abnormal electrical activity throughout the brain, which begins with both hemispheres at the same time rather than starting at a discrete focal point.
Grand mal seizure also called tonic-clonic seizure is a type of generalized seizure caused by epilepsy, stroke or other factors. A person affected by this usually becomes unaware of his environment when experiencing this type of seizure. The person losses consciousness, followed by muscle convulsions.
An nursing informatics specialist is planning to record her lecture for an in-service program and then upload it to a secure website. Participants in the in-service program are instructed to view the presentation before attending the in-person part of the program. The specialist hopes that viewing the presentation beforehand will stimulate a more involved question-and-answer discussion. Which software would the participants most likely use to view the presentation?
Answer: Google Drive
Google drive is a soft ware that allows users to store files; synchronized and accessed the files from simple devices (mobile and desktop); and share them with team members for viewing.
The administrator panel on the interface enabled the user to control the file sharing, monitor how the user shares the files, and protect against data loss.
It also enables the administrator to edit the files in real time events, and give rooms for other user to pass comments on the uploaded files
Media files, documents, slides can be stored and view by the media player and other software of the accessing devices
Therefore it is an ideal software for the Informatics nurse to use to enables the participant to peruse the presentation before the real session.
Explanation:
Which drugs require caution while being used with an older adult who has developed heart failure due to hypertension?
Answer:
Answer ..... Decongestants, Amphetamines and over-the- counter cold medications.
Explanation:
The above mentioned drugs require caution while administering them to an older adult with heart failure developed due to hypertension , this is because the drugs have the tendency of increasing water retention and increasing cardiac load. And this is very dangerous for such person.
Note that , Long -acting sedatives and narcotics can be administered safely, because they have no negative effect on cardiac function.
Answer:
Calcium channel blockers
Nsaid
Cold and cough medicines with pseudoephedrine or phenylephrine.
One of the most common causes of acute pain is a. trigeminal neuralgia. b. malignancy. c. headache. d. fibromyalgia.
Answer: Headache
Explanation:
The most common cause of the acute pain is headache. It can be specific or non specific.
The pain in the head can be caused due to any of the reason. It can a normal headache due to be being hungry for a longer period of time.
It can be a migraine pain, it can be pain due to tumor in the brain. There can be pain due to some injury.
Final answer:
The most common cause of acute pain among the given options is a headache, specifically tension headaches, which are due to muscle tension and stress.
Explanation:
One of the most common causes of acute pain is c. headache.
A headache is characterized by continuous pain in the head or neck area and can be caused by various factors including sinus inflammation, migraines, and tension. Tension headaches, which are often due to muscle tension in the shoulders, neck, and head, particularly during stress, account for about 42% of all headaches globally. They are the most common type and are experienced by well over one-third of the population in the United States annually. Factors such as stress can cause muscles to tighten, leading to the pain felt during a tension headache. Mild pain relievers like ibuprofen may help manage the pain.
Mitochondria and chloroplasts are similar in that they both __________; however, they are different in that only chloroplasts, and not mitochondria, __________.
Answer: produce energy; photosynthesize
Explanation:
Mitochondria and Chloroplast are similar because both are cellular organelles involved in ENERGY PRODUCTION:
- Chloroplasts in green plants, due to its membrane containing chlorophyll molecules produces energy during photosynthesis
- Mitochondria in animal cells produces energy in form of ATP during lipid oxidation occuring in its membrane.
However, both organelles DIFFER in that ONLY CHLOROPLAST allows photosynthesis in its membrane, unlike Mitochondria
how do the characteristics of shale change with increased pressure and temperature?
Answer: Shale changes into Slate.
Explanation:
Shale is a sedimentary rock, formed by the deposition and compression of clay and silt.
Shale layers is buried deep into the earth through the process of deposition (i.e the laying down of rock forming material by natural entities like glaciers, wind, and water).
Temperatures and pressures rise greatly because the shale’s layers are buried. When the temperatures and pressures become higher. The shale is changed into a metamorphic rock (with dark brown streak), called Slate.
Final answer:
Shale changes under increased pressure and temperature during metamorphism, becoming denser, harder, and ultimately transforming into metamorphic rocks such as schist, with the original bedding obscured and the presence of new minerals aligned perpendicular to pressure.
Explanation:
When shale is exposed to increased pressure and temperature conditions, it undergoes a metamorphic transformation. Temperature and confining pressure play significant roles in altering the rock's characteristics. As the temperature rises, the energy of the shale's minerals increases, resulting in increased atomic vibrations and potential atom swapping within the crystal lattice. This process can lead to the formation of new minerals and changes in the rock's chemical equilibrium.
With an increase in pressure, especially confining pressure, the rock becomes denser and harder. This results in textural changes such as the realignment of mica crystals in the direction perpendicular to the main stress, a characteristic commonly seen when shale metamorphoses into schist. Additionally, the original sedimentary bedding of shale becomes difficult to distinguish after it has been significantly altered by heat and pressure.
Through this metamorphic process, shale can recrystallize and form different types of metamorphic rocks, such as hornfels or schist, depending on factors like the rock strength and the presence of chemically reactive fluids. Over time, increased depth within the Earth's crust introduces high pressure and temperature, which lead to various degrees of metamorphism, ultimately changing the characteristics and appearance of the original shale rock.
Long arms with short legs and a short, stable lumbar spine are traits associated with which of the following? Group of answer choices
1. arboreal quadrupedalism.
2. brachiation.
3. vertical clinging and leaping.
4. full-time bipedalism
5. terrestrial quadrupedalism.
Answer:
The correct answer is - option 2.
Explanation:
Brachiation is a movement or locomotion in which movement is occurred by the swinging from changing the hold from one arm to the other. In this primate such as spider monkeys, gibbons, and other similar primates those have long arms with comparatively smaller legs and stable but short lumbar spine. These longer arms help in making hold and swinging from one tree to another.
Thus, the correct answer is - option 2.
Answer:
Brachiation.
Explanation:
Arboreal activities are developed in the organisms that has the ability to fly and remains limited to the lands. Different arboreal mechanism include clinging, brachiation and leaping.
Brachiation is also known as the arm swinging in which the individual swings from one branch to other branch by using the arms only. The organisms that are adapted to brachiation has short legs and the longer arms. The lumbar spine is quite stable and supported by the forelimb.
Thus, the correct answer is option (2).
Explain three unique ways fungi are different from other microbes (algae, protozoans, bacteria and archaea).
Answer:1) Fungi is a Eukaryotes
2) fungi possess hyphae
3) most fungi are not mobile
Explanation: Fungi is multicellular have a well developed cell structure which comprises of organelles where as other microbes are mostly unicellular and prokaryotes.
Fungi does not move but other microbes process structures for movement and can move
Density is mass per unit of volume. Which pair of lab instruments would a student use to measure the density of seawater?
1. a caliper and
2. a flask
3. a stopwatch and a beaker
4. a balance and a graduated cylinder
5. a meter stick and a temperature probe
Answer:
The answer is option 4. a balance and a graduated cylinder.
Explanation:
The graduated cylinder would be used to measure the volume of sea water while a balance will be used to measure the mass. Both values obtained will be used to determine the density of sea water.
A balance and a graduated cylinder are the appropriate lab instruments for measuring the density of seawater. The balance measures mass and the graduated cylinder measures volume; these values allow for the calculation of density (Option 4).
Explanation:To measure the density of seawater, a student would use the combination of a balance and a graduated cylinder. The balance would be used to measure the mass of the seawater, where seawater is initially weighed in the graduated cylinder and then it is subtracted with the mass of the empty cylinder to determine the mass of the seawater.
On the other hand, a graduated cylinder is used to measure the volume of the seawater. Once you have these values, density can be computed by using the formula density = mass/volume
Learn more about Measuring Density here:https://brainly.com/question/33448476
#SPJ3
Which of the following pieces of additional data would help further investigate the relationship between bears, salmon, and influx of nitrogen into the local environment?
(A) The experimenters should remove the remains of salmon carcasses immediately after the salmon are eaten by the bears and determine the nitrogen content of the carcasses.
(B) The experimenters should increase the number of bears in the area and measure the amount of nitrogen available for uptake by plants.
(C) The experimenters should set up a net to catch salmon before they enter the area and then measure nitrogen influx.
(D) The experimenters should clear-cut the trees from the area and determine how much nitrogen remains in the streams.
Answer:
The relationship between bears, salmon, and influx of nitrogen into the local environment can be investigated with the help of following statement:
(A) The experimenters should remove the remains of salmon carcasses immediately after the salmon are eaten by the bears and determine the nitrogen content of the carcasses.
Explanation:
To determine the nitrogen content of the carcasses, the experimenters should remove the remains of salmon carcasses immediately after the salmon are consumed by the bears. The nitrogen are released to the environment from the dead animals.
The presence of black bears and salmon is related with increase in nitrogen influx. The interaction between bears and salmon influences the nitrogen dynamics in the environment. The nitrogen dynamics in the environment can be measured by measuring the carbon content of the carcasses.
You are performing a Gram stain on g bacteria and you stop after the addition of the first dye. What is the appearance of the bacteria at this point?
Answer:
The correct answer is violet/ purple.
Explanation:
Gram staining is performed to distinguish between gram-positive and gram-negative bacteria. The first stain or dye which is used in gram stain is crystal violet. So after adding this dye, all cells will be colored purple.
So when we stop after the addition of first dye then all the cells will appear purple/violet because all the cells will contain crystal violet in its cell wall which can be seen under the microscope. So we will not be able to distinguish between gram-positive and gram-negative bacteria. So the correct answer is purple.