Answer:
The correct answer is - option 1. true.
Explanation:
Diffusion is the process where the solute moves from higher concentration area to the low concentration area. The major example of the diffusion is in the solute exchange between plasma and interstitial fluid. Blood plasma contains water, waste contents, ions, and various nutrients. It can be transported to the interstitial fluid from blood plasma in capillaries and back.
Bulk flow is the simple protein or any other large molecule transport or movement from the blood to interstitial fluid or interstitial to blood. this is essential for regulation of the relative volumes of blood and interstitial fluid.
Thus, the correct answer is - option 1.
What is the relationship between choanoflagellates and animals?
Answer: It's the cells, just without the chloralplast , but animals don't need that because only plant cells have chloralplast. So animals only get theses type of cells if they a herbivores,or omnivores because they eat plants and it helps them survive that way
Explanation:
Choanoflagellates are unicellular organisms considered to be the closest living relatives of animals, sharing key morphological and genetic features with metazoans, especially sponges. Their similarities in the structure of feeding cells and expression of certain genes highlight the evolutionary relationship, suggesting that these protists may parallel the earliest animal forms.
The relationship between choanoflagellates and animals, particularly metazoans (multicellular animals), is a significant area of interest in evolutionary biology. Choanoflagellates are a group within the Opisthokonta and are considered the closest living relatives of animals. These protists are mostly unicellular, but some can form colonies, and they number about 244 described species.
Choanoflagellates share some key characteristics with sponges, suggesting a close evolutionary relationship. Both choanoflagellates and sponge collar cells possess a single apical flagellum surrounded by a contractile collar of microvilli, which functions to filter food particles from the water. This similarity points to a possible common ancestor and indicates that choanoflagellates may resemble the earliest forms of animal life.
In addition, choanoflagellates express genes for several proteins essential for cell-cell interactions in metazoans, thereby highlighting the genetic and functional ties between these protists and multicellular animals. Their morphology and genetic attributes provide crucial insights into the evolution of animals from single-celled ancestors.
Thus, studying choanoflagellates can help us better understand the origins of complex multicellularity and the evolutionary trajectory that led to the vast diversity of animals observed today.
Successful entrepreneurship requires both ________ and ________ reasoning. (1pts) Student Results Multiple Choice Multiple Choice Options Unselected divergent; convergent Unselected divergent; lateral Incorrect Selected convergent; lateral Incorrect Unselected asymmetric; symmetric
Answer:
divergent; convergent
Explanation:
Convergent reasoning involves analyzing and evaluating different ideas in order to select the best solution to a problem, while divergent reasoning involves generating several creative ideas and solutions to a problem.
Both reasoning is important for a successful entrepreneurship as convergent reasoning would help in streamlining past options or solutions to pick the best that have once worked, thereby saving time and resources of trying too many options. On the other hand, divergent reasoning is needed for creatively finding new solutions, which might be another “turning point” for a business.
Successful entrepreneurship requires a balance of divergent and convergent reasoning, which are connected to creativity and practical decision-making, respectively.
Explanation:Successful entrepreneurship requires both divergent and convergent reasoning. Divergent thinking is the ability to think 'outside the box' and generate multiple, unique solutions to problems. Convergent thinking, on the other hand, involves focusing on finding the most effective answer or solution that is already well established. While divergent thinking is associated with creativity and innovation, which are crucial for identifying new business opportunities and strategies, convergent thinking is necessary for making decisions that lead to efficient and practical implementation of those ideas in business operations. Entrepreneurs need to balance both types of thinking to tackle the broad array of challenges they encounter, from the conceptualization of a product or service to the actual delivery to the market and day-to-day business management.
As the snow melts from atop mountains in the spring, the river below begin to flood. What type of disturbance is this?
A. Primary
B. Secondary
C. Cyclical
D. Small
A springtime flood caused by melting snow from mountains is a cyclical disturbance in the ecosystem, which is a repeated, natural phenomenon and not one that typically incites ecological succession. Therefore, the correct answer is option C.
When snow melts from the mountaintops in the spring leading to the rivers below beginning to flood, this is classified as a cyclical disturbance. A cyclical disturbance is a repeatable, natural event that occurs with regularity in an ecosystem, like the seasonal patterns we observe with snow melt and flooding. Unlike primary succession, which occurs in an area devoid of vegetation and other organisms usually following a catastrophic event, or secondary succession, which takes place after an ecosystem has been disturbed but the soil remains intact, cyclical disturbances are part of a pattern and do not necessarily lead to succession.
Floods like this contribute to surface runoff, which is part of the hydrologic cycle. These waters can sometimes help to nourish the flood plains, but can also cause significant damage when the volume of water is too great. Understanding these events is critical for managing ecosystem populations and preparing for natural disasters to minimize their impact on human and natural systems.
During the spring and fall each year thousands of maple trees are tapped for their fluids in order to make "real" maple syrup. If you were to tap into a maple tree to extract the syrup (sucrose) which tissue layer do you want to tap into
Answer:
The phloem tissue layer
Explanation:
The phloem tissue of a plant is one of the vascular tissues of higher plants responsible for the conduction or transportation of photo-synthetically manufactured food (usually in the form of sugar) round the body of the plant to the various tissues and organs that require it.
The tissue moves food materials from their source of manufacture, usually the leaf, to other parts of the plant. Hence, in order to extract the syrup from the maple tree, the phloem layer must be tapped into.
Corbin recently found out that he has cancer, and he now strictly follows a treatment, diet, and exercise program that the doctor thinks will be helpful in keeping the cancer from spreading. These behaviors best illustrate ____ coping.
Answer:
Corbin recently found out that he has cancer, and he now strictly follows a treatment, diet, and exercise program that the doctor thinks will be helpful in keeping the cancer from spreading. These behaviors best illustrate problem-focused coping.
Explanation:
Problem-focused coping seeks to tackle the stressor head-on allowing the individual greater perceived control over their problem resulting in :
Managing and changing the stressorUse if problem seems alterableConfrontice copingPlanful problem solvingAs Cobbin is strictly following treatment, diet and exercise programs that the doctor thinks will be helpful in keeping the cancer from spreading, Cobbin is showing problem-focused coping.
Joanne is a 60-year-old patient with an LDL of 132 and a family history of coronary artery disease. She has already tried diet changes (increased fiber and plant sterols) to lower her LDL and after 6 months her LDL is slightly higher. The next step in her treatment would be:
A. A statin
B. Niacin
C. Sterols
D. A fibric acid derivative
Answer:
The correct answer is option A. "A statin".
Explanation:
Statins a type of drug that are prescribed to treat people that are at high risk of developing a cardiovascular disease. Since Joanne is a person with history of coronary artery disease and her LDL levels remained high after trying diet changes, the next step in her treatment will be to take a statin drug. It has been proved that statin are among the most effective drug at lowering LDL levels, therefore, a treatment with a statin will be effective for Joanne's condition.
If a uniform becomes saturated with blood, what is the proper action that should be taken for the athlete to continue participation? A. The uniform should be changed at halftime B. The uniform should be changed immediately C. No action should be taken and the athlete continues without interruption D. The blood should be rinsed off with water
Explanation:
(B) The uniform should be changed immediately
The uniform ought to be changed right immediately. Blood is perilous as it could convey pathogens from tainted individuals. Uniform to control seeping by a player yet were adjusted to "a reasonable amount of time" to Cleanup time for blood spills and trade of "saturated uniforms" is at the circumspection of the arbitrator. The bone marrow produces undeveloped cells, the structure obstructs that the body uses to make the distinctive platelets red cells, white cells and platelets.Select the correct answer from the list.
When it is burned to produce electricity (petroleum, natural gas, coal) emits the most carbon dioxide. This fossil fuel accounted for ( 1/3, 1/2, 3/4 ) of the electricity generated in the United States and emitted 68 percent of the carbon dioxide produced by generating electricity.
Answer:
When it is burned to produce electricity, coal emits the most carbon dioxide. This fossil fuel accounted for 1/3 of the electricity generated in the United States and emitted 68 percent of the carbon dioxide produced by generating electricity.
Gases like carbon dioxide increase the temperature and cause global warming. Carbon dioxide makes the vast majority of greenhouse gas emissions from the electricity sector.
Coal is the fossil fuel that produced the maximum amount of carbon dioxide by burning to produce electricity. This fossil fuel accounted for 1/3 of the electricity generation.
Fossils fuelsIt is a fossil fuel formed by the decay of organic matter over prolonged periods under Pressure and in the absence of air. It then undergoes heat treatment (carbonization) to yield carbon dioxide, methane, water, and deposits of material rich in carbon.
Coal is used mainly as fuel to generate electric power for steam engines, factories, and electric plants. About 68% of this electricity generation was from fossil fuels—coal, natural gas, petroleum, and other gases.
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The parent of a young client with severe hearing loss is quite concerned about the child’s future independence because of impaired hearing. Which type of hearing loss is usually irreversible?
Explanation:
Your ear is comprised of three sections—the external, the center, and the internal ear. Sensorineural hearing loss or SNHL, occurs after internal ear harm. Issues with the nerve pathways from your inward ear to your cerebrum can likewise cause SNHL. Delicate sounds might be difficult to hear. Significantly stronger sounds might be hazy or may sound stifled. This is the most widely recognized kind of permanent hearing loss. More often than not, medication or medical procedure can't fix SNHL. Listening devices may enable you to hear.
If a person does not consume sufficient carbohydrates in food, the body will make glucose from _______ for a fuel source. This results in an undesirable breakdown of body tissue.
Final answer:
In the absence of sufficient carbohydrates, the body will utilize fatty acids and proteins as fuel sources, resulting in body wasting.
Explanation:
In conditions of low glucose, such as fasting, starvation, or low carbohydrate diets, glucose can be synthesized from lactate, pyruvate, glycerol, alanine, or glutamate. This process, called gluconeogenesis, is almost the reverse of glycolysis and serves to create glucose molecules for glucose-dependent organs, such as the brain, when glucose levels fall below normal.
In the absence of sufficient carbohydrates, the body will utilize alternative sources such as fatty acids and proteins as fuel sources. However, using protein for energy causes breakdown of body tissue, resulting in body wasting.
Ketone bodies are also produced from fats and can serve as a fuel source for the heart and other organs in times of prolonged starvation or low glucose levels.
Cells are infected with a vesicular stomatitis virus (VSV) strain in which a viral gene (VSVG) is fused to the green fluorescent protein gene. When the chimeric protein is synthesized, what pathway does it follow from synthesis until it leaves the cell?
Options:
RER, Golgi complex, plasma membrane, viral envelopes RER, Golgi complex, viral envelopes, plasma membrane Golgi complex, RER, plasma membrane, viral envelopes.RER, Golgi complex, mitochondria, plasma membrane, viral envelopes RER, mitochondria, Golgi complex, plasma membrane, viral envelopesAnswer:
Option-(5): RER, mitochondria, Golgi complex, plasma membrane, viral envelopesExplanation:
The cellular organelles are well arranged in a given systematic order to execute the process for the synthesis of the chimeric protein inside the living being body.
Provide TWO reasons why the genotype and phenotype frequencies do not match in the Tadjik population. (Hint: Think about the methods used to obtain the data and the differences between what is represented by genotype and phenotype data.)
Answer:
The reason why the genotype and phenotype frequences do not match is just because the 1) The genotype based on genes observation,while the phenotype based on physical appearance of the organism externally
Explanation:
the genotype is looking on the arrangement of genes in pair and get its frequency ,while phenotype the external physical appearance of organism is observed to get frequency
Final answer:
The discrepancy between genotype and phenotype frequencies in the Tadjik population may be due to incomplete penetrance, where individuals do not exhibit the expected phenotype, and inaccuracies in phenotype measurement, reflecting challenges in capturing the full scope of observable traits.
Explanation:
Understanding why the genotype and phenotype frequencies do not match in the Tadjik population involves considering both biological principles and methodological issues. Firstly, it's important to recognize that genotypes refer to the genetic makeup of an organism, comprising alleles received from both parents. Phenotypes, however, are the observable characteristics or traits of an organism, influenced not only by genotypes but also by environmental factors.
One reason for the discrepancy between genotype and phenotype frequencies can be attributed to incomplete penetrance. This genetic phenomenon occurs when individuals with a certain genotype do not exhibit the expected phenotype due to interactions with environmental factors or other genes. This could significantly affect the observed phenotype frequencies in a population if the condition with incomplete penetrance is common within that group.
The second reason involves the accuracy of phenotype measurement. Phenotypic characteristics can sometimes be challenging to measure accurately due to variability in expression levels, environmental influences, or the subjective nature of certain traits. These issues can lead to discrepancies in the reported phenotype frequencies, especially if the data collected does not adequately capture the diversity or intensity of traits within the population.
You find a multi-legged animal in your garden and want to determine if it is a centipede or a millipede. You take the animal to a university where a myriapodologist quickly tells you that you have found a centipede. Which of the following may have allowed her to make this distinction?A) segmentationB) poisonous fangsC) egg-layingD) molting
Answer:
B) poisonous fangs
Explanation:
Centipedes and millipedes are jointed legs animals. Centipedes are members of the class chilopoda and millipedes are members of the class diplopoda of the phylum Arthropoda.
Presence of poisonous fangs in the centipedes differentiate them from millipedes. Nutritionally centipedes are carnivorous, they kill prey or paralyze prey with large jaws. Unlike the centipede, millipedes are feed on dead and decaying organic matter such as leaves and compost.
Final answer:
The myriapodologist identified the multi-legged animal as a centipede likely due to its poisonous fangs (C) called forcipules and because it has one pair of legs per body segment.
Explanation:
The myriapodologist was able to quickly determine that the multi-legged animal you found in your garden is a centipede most likely due to the presence of poisonous fangs, known as forcipules. These forcipules are modified legs on the first segment of centipedes like Scutigera coleoptrata, capable of delivering venom to their prey, which is a distinctive feature of centipedes. Another key difference between centipedes and millipedes that could have aided in identification is that centipedes have one pair of legs per body segment and tend to be somewhat dorsoventrally flattened, while millipedes have two pairs of legs per body segment due to the embryonic fusion of adjacent segments and are usually rounder in cross-section.
If the frequency of a particular allele that is present in a small, isolated population of alpine plants decreases due to a landslide that leaves an even smaller remnant of surviving plants bearing this allele, then what has occurred? A. A bottleneck B. Genetic drift C. Microevolution D. A and B only E. A, B, and C are all correct.
Answer:
E. A, B, and C are all correct.
Explanation:
Microevolution is an evolutionary change that is said to occur on a small scale within a population of species over a short period of time. This can be seen in the case of the population of alpine plants. The change is within the population.
Genetic drift, by definition is the change in the allele frequencies, as can be seen in the alpine plants, which is brought about by a bottleneck effect. In order words, bottleneck effect occurs when a population size is reduced drastically as a result of environmental events such as landslide, that can be seen in the case of alpine plants. This genetic drift example randomly selects the surviving individuals in this microevolution.
At the time when the frequency of the specific allele should be present so here the bottleneck, genetic drift, and the microevolution should be considered. Hence, option E is correct.
What it should be occured?In the bottleneck effect, the frequency of the population should be changed because of the specific event like as a natural calamity. In genetic drift, frequency changed owing to the disappearance of the genes. And, In microevolution, the changes occur because of genetic drift, selection, gene flow and mutation.
Therefore, the option E is correct.
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please help me with this
Answer:
Cell membrane present, ribosome present, lysosomes present, nuclear membrane present: Animals
Cell wall present, ribosomes present, nuclear membrane absent: Prokaryotic
Cell wall present, ribosome present, nucleus present, large vacuole present: Plants
Reproduces inside a cell, Nucleus absent, RNA present : Virus
Explanation:
Animals are multicellular organisms which do not possess cell wall. Hence option 1 represent animals.
Prokaryotes have cell wall but lack nuclear membrane. Hence, option 2 represents prokaryotes.
Plant cells have a cell wall, a nuclear membrane as well as a large nucleus. Hence option 3 is plants.
From an evolutionary point of view, what important process occurs when a young male baboon leaves the troop that he was born in to join another troop?
Answer: GENE FLOW
From an evolutionary point of view, what important process occurs when a young male baboon leaves the troop that he was born in to join another troop?......GENE FLOW.
Explanation: Gene flow is also called MIGRATION. It's simply the transfer of gene/genetic materials from one population to another.
It can also be referred to as the movement of an individual or animal from one popularity to another.
Example; Pollination which involves a bee or butterfly catering pollen grain from the anther of a flower to the stigma of another flower, in essence moving the pollen grain from one population to another population
in human cells 2N = 46. how many chromosomes would you expect to find in a sperm cell? in am egg cell? in a white blood cell? Explain
Answer:
There will be 23 chromosomes in a sperm cell, 23 chromosomes in an egg cell, and 46 chromosomes in a white blood cell
Explanation:
Human cells are diploid in number i.e they exists in two basic sets (2N =46, where N is 23). So, cells of human body such as blood cells like white blood cells have two basic sets of chromosomes i.e 46 chromosomes, since they are produced by mitosis.
On the other hand, cells of humans involved in sexual reproduction such as the gametes (sperm and egg) have only one set of chromosomes since they are produced by meiosis - so they are haploid (N =23).
Answer:
Sperm=23
Egg cell=23
White blood cell=46
Explanation:
During cell division Meiosis produce haploid number of gametic chromosome 23.
The somatic cell contains 46 chromosome i.e diploid chromosome number. During cell division in meiosis gametes cells contains haploid number-23 chromosome which is half of the somatic cell chromosome.
During conjugation, haploid chromosome is donated by each parent to give a diploid organism with 46 chromosome number.
White blood cell contains 46 chromosome because it doesn't undergo cell division it is a somatic cell.
A medical study was investigating if getting a flu shot actually reduced the risk of developing the flu. A hypothesis test is performed. Which of the following will result in a Type I error?
a. Researchers said the flu shot reduced the risk of developing the flu when it actually did
b. Researchers said the flu shot did not reduce the risk of developing the flu when it actually did.
c. Researchers said the flu shot did not reduce the risk of developing the flu when it actually didn't
d. Researchers said the flu shot reduced the risk of developing the flu when it actually didn't.
e. Researchers could not tell if the flu shot reduced the risk of developing the flu because of other problems with the study.
Answer:
d. Researchers said the flu shot reduced the risk of developing the flu when it actually didn't.
Explanation: The rejection of true null hypothesis based on experimental procedures is called Type 1 error.
The primary aim of the investigation was to find out if a flu shot guide against flu infection or not.Therefore to arrive at a conclusion, this true null hypothesis must be tested, and evidences of the effects of flu shot on development of flu could be determined.
Therefore after testing;evidences arrive at will determine if flu shot reduces the risk or no effect at all.However, if there is no significant evidence to support the potency of flu shot, and it was jumped to conclusion that its actually reduces the risk of development,(that is null hypothesis was rejected) then the basis for the test- which is to test the null hypothesis has been defeated, thus Type 1 error has been committed .
When the researcher concluded that flu shot actually reduced the risk,when actually it was the contrary, he had rejected the objective of the true null hypothesis .Besides there was no probability value to show that this was below 0.05 confidence value.
A Type I error occurs when researchers incorrectly reject the null hypothesis and claim that the flu shot reduced the risk of developing the flu when it actually didn't.
option a is correct
Explanation:The correct answer is a. Researchers said the flu shot reduced the risk of developing the flu when it actually did. A Type I error occurs when the null hypothesis is rejected, even though it is true.
In this case, the null hypothesis would be that the flu shot does not reduce the risk of developing the flu, but the researchers incorrectly rejected this hypothesis and claimed that it did reduce the risk.
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To calculate the turnover number of an enzyme, you need to know: A) the enzyme concentration. B) the initial velocity of the catalyzed reaction at [S] >> Km. C) the initial velocity of the catalyzed reaction at low [S]. D) the Km for the substrate. E) both A and B.
Explanation:
Enzymes belong to the proteins category because enzymes are long chains of amino acids bound together by peptide bonds Enzymes have a special marker on them called an active site that, like a puzzle piece, fits with only one other type of molecule, generally referred to as a substrate. The substrate is a molecule that will undergo a reaction that results in it splitting into two separate molecules, called productsThe substrate-specific to a particular enzyme will bind at the active site, forming what is known as an enzyme/substrate complex. In other words, a complex formed by the union of the enzyme and substrateHence, the right answer is option E "both A and B"To calculate the turnover number of an enzyme, you need to know: E) both A and B.
Turnover numberTurnover number is defined as chemical reactions of an enzyme concentration with substrate molecules at per second. Turnover number is calculated by a simple formula
[tex]k_{cat}= \frac{V_{max}}{E_t }[/tex]
Where Vmax is the rate of reaction at saturation point and Et is the enzyme concentration.
Thus, the enzyme concentration and the initial velocity of the catalyzed reaction at [S] that is represented by km
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When red and white snapdragon flowers are crossed, the offspring are pink. If these pink flowers are crossed with white ones, what percent of the seeds produced are likely to develop into pink flowers?
Answer:
50%
Explanation:
This is a case of incoplete dominance of the red allele over the white allele.
Let the red allele be R and the white allele be r.
RR x rr = All Rr, pink flower phenotype.
The pink flower plants are then crossed with white flower plants;
Rr x rr = Rr (pink), Rr (pink), rr (white) and rr (white).
50% or 1/2 of the offspring will be pink flowered while the remaining 50% or 1/2 will be white flowered.
Lysine is an essential amino acid for animals. If an animal did not consume lysine in its diet, what could happen to it?
If an animal did not consume lysine in its diet, then it would not be able to synthesize many necessary proteins.
Explanation:
Lysine is an essential amino acid which helps the tissues to grow.
Lysine is a limiting amino acid which acts as a substrate to generate animal body proteins, and the peptide and non-peptide molecules.
In animals like chicken, swine etc grown for their meat, lysine is supplemented in animal feeds to increase their muscle tissue growth and increased meat production.
Further dietary lysine deficiency in animals will lead to reduction in muscle mass, impairment of immunity and body defense against infections, affects synthesis of many animal proteins like milk proteins in bovine animals.
What is not a desirable blood lipid value
Answer:
When the Total cholesterol level is 240 mg/dL and above
Explanation:
Lipids in our body is classified as LDL-cholesterol, HDL- cholesterol and triglyceride. The human body lipidi content is measured as lipid profile that is the total cholesterol level, LDL-cholesterol, HDL- cholesterol and triglyceride.The lipid value in our body is said to be non desirable when the Total cholesterol level is 240 mg/dL and above, LDL cholesterol is 190 mg/dL and above, HDL cholesterol is 60 mg/dL and above, and when the triglycerides level is 500 mg/dL and above
An undesirable blood lipid value is a high low-density lipoprotein (LDL) level above 160 mg/dL or a high triglyceride level above 150 mg/dL, both of which increase the risk for heart disease and stroke.
Explanation:Not all blood lipid values are equally beneficial for health. A desirable blood lipid value is one that reduces the risk of cardiovascular disease. High-density lipoprotein (HDL), often called the 'good cholesterol transporter,' is one such lipid profile component that is desirable to have in high amounts. HDL helps transport cholesterol from the tissues back to the liver, where it can be excreted, thus lowering the risk of heart disease. The desirable level for HDL is above 40 mg/dL for men and above 50 mg/dL for women.
In contrast, low-density lipoprotein (LDL), known as the 'bad cholesterol transporter,' is a lipid profile component that is not desirable when found at high levels. Elevated levels of LDL are associated with an increased risk of atherosclerosis and heart attack. An ideal LDL level is less than 100 mg/dL, while an LDL level above 160 mg/dL is considered high and not desirable.
Furthermore, although not cholesterol, triglycerides are another type of fat in the blood that can pose health risks when high. A normal triglyceride level is 150 mg/dL or lower, and higher levels have been linked to an increased risk of atherosclerosis, heart disease, and stroke. Hence, an undesirable blood lipid value would be a high LDL cholesterol or a high triglyceride level.
Which are the following is a true statement about prions?
A. They are viruses
B. Are the cause of Ebola
C. They are composed of misshapen proteins
D. Usually infect plants
Answer: Option C) C. They are composed of misshapen proteins
Explanation:
Prions are infectious agents that contain protein but no nucleic acids (DNA or RNA). Prions have been implicated in the causative agent in several diseases such as:
- Mad cow's disease
- Creutzfeldt-Jakob disease etc
What is this phenomenon known by neuroscientists? Peter suffers damage to his left frontal lobe and loses the ability to speak but can still understand speech. Despite the permanance of his damage, he is able to recover some of his speech due to his brains ability to take over the lost function.
A. Flexibility
B. Adaptiveness
C. Plasticity
D. Compensation
E. Homeostasis
Answer:
The correct answer is - plasticity.
Explanation:
Neuroplasticity, brain plasticity or plasticity of the brain is the ability of brain to develop of change throughout the life. In this case peter suffers damage or injury in his frontal lobe that stores learned ability.
As he lost ability of speak however still can understand the speech and he is still able to recover as brain has neuroplasticity that helps in recovering the lost function.
Thus, the correct answer is - plasticity.
The cichlid Cynotilapia afra, introduced at West Thumbi Island in Lake Malawi in the 1960s, has split into two genetically distinct populations, located at the north and south ends of the island. How can scientists determine whether these populations are now different species, according to the biological species concept?
Explanation:
Determine whether peoples from one populace will interbreed with people from the other populace when brought into one another's local environmentsAn animal category is a gathering of individual living beings that interbreed and produce fruitful, practical posterity. As indicated by this definition, one species is recognized from another when, in nature, it isn't feasible for matings between people from every specie to create prolific posterity Individuals from similar species share both outer and inward qualities that create from their DNA. The closer relationship two living beings share, the more DNA they share for all intents and purpose, much the same as individuals and their families. Individuals' DNA is probably going to be more similar to their father's or mother's DNA than their cousin's or grandparent's DNA. Living beings of similar species have the most significant level of DNA arrangement and, subsequently, share attributes and practices that lead to effective propagation20. Which nutritional classification would you predict to fit most of the well-known members of the human microbiome? A. Photolithoautotrophs B. Chemoorganoheterotrophs C. Chemolithoautotrophs D. Chemolithohetertrophs
Final answer:
The nutritional classification fitting most well-known members of the human microbiome is Chemoorganoheterotrophs, as these organisms utilize organic molecules as both carbon and electron sources.
Explanation:
The nutritional classification that would fit most of the well-known members of the human microbiome is B. Chemoorganoheterotrophs. These organisms are distinguished by their ability to use organic molecules as both their carbon and electron sources. The human microbiome, comprising various bacteria, fungi, and archaea, relies extensively on the organic compounds sourced from the human body itself. Unlike autotrophs that can synthesize their own food from inorganic substances, chemoorganoheterotrophs obtain their energy from the oxidation of organic compounds. This category includes a vast majority of bacteria and all fungi which are essential members of the human microbiome, playing crucial roles in digestion, synthesis of vitamins, and protection against pathogenic invaders.
Which is the pancreatic hormone associated with diabetes?
a. Glycogen
b. Glucagon
c. Insulin
d. Bile
e. Glucose
Answer:C
Explanation:
Some of the largest leaves in the world can be found on plants near the floor of dense tropical rain forests. Which of the following precursors for photosynthesis is most likely limited in these large leaves?A) oxygenB) carbon dioxideC) glucoseD) light
D) Light , is limited in these rainforest.
Explanation:
Tropical rainforests are characterized by heavy rainfalls and dense forests.
The trees found here are evergreen and form a dense canopy on the forest floor.
Due to this the forest floors of Tropical rain forest do not receive adequate amount of light.
The under shrubs thriving in these region ,need to develop certain mechanism so that they can trap more and more light.
To attain this goal the plants growing on the forest floor of tropical rain forest developed large leaves that have greater surface area to trap more and more light.
Which event describes a change where evolution has happened? An allele frequency changes in a population. A white-eyed fly is born into a population of brown-eyed flies. A species of tree dies out. A school of fish moves to a new environment.
Answer:
A white-eyed fly is born into a population of brown-eyed flies.
Explanation:
In the example, a new mutation (i.e., white-eyes) has appeared in the progeny. In the case that this new mutation has adaptive value, it will be transmitted across generations and therefore will increase its frequency in the population
The event that describes a change where evolution has happened is when an allele frequency changes in a population. This is based on the genetic definition of evolution, which involves shifts in allele percentages over time in a population.
Explanation:Defining Evolution through Allele FrequenciesEvolution in biology refers to a change in the characteristics of a population over time, which at its core, involves a change in genetic material. Allele frequencies are the percentages of different versions of a gene in a population. A change in these frequencies is evidence that evolution is occurring. This can happen due to various factors, such as natural selection, mutation, genetic drift, gene flow, and nonrandom mating.
An example of an event that describes a change where evolution has happened is when an allele frequency changes in a population. This mirrors the genetic definition of evolution and aligns with the understanding established by the Hardy-Weinberg Theorem. For instance, using the ABO blood system, if the frequency of one allele changes over time, this represents an evolutionary change in that population.
However, a single white-eyed fly being born into a population of brown-eyed flies does not constitute evolution, since evolution refers to changes across the population, not individuals. Similarly, the extinction of a species or the migration of a school of fish might result from evolution but are not themselves examples of evolution happening.
A marine scientist in California wants to study the habitat of Atlantic blue crab, a species of crab found around the Chesapeake Bay. How can he best study the habitat of these organisms
Explanation:
The best to study about the habitat of this organism is to collect and analyze water samples from Atlantic blue crab habitats within the Chesapeake Bay Because taking a sample of the water will about the different microorganisms in it and the temperature of water suitable for Atlantic blue crab. Appropriate conditions might not be met at the lab for Atlantic blue crab to conduct an experiment. Hence, the scientist can be "study the habitat of these organisms by the best study of these sample of water"