Answer:
DNA mutation causes genetic variation by altering the genes of individuals in a population. Gene flow leads to genetic variation as new individuals with different gene combinations migrate into a population.
The flow of individuals in and out of a population introduces new alleles and increases genetic variation within that population. Mutations are changes to an organism’s DNA that create diversity within a population by introducing new alleles.
Answer:
The correct answer is- hormone signal amplification
Explanation:
The signals that are received by the cell can be amplified in the cell which results in the production of more than one molecule of the product. There is a signal pathway in every cell and the longer the signal pathway the more amplification chances are there.
For example, one membrane receptor is able to produce 10 secondary messengers and each secondary messenger generates 10 mRNA transcript so here the signal amplified by 1000 folds.
So in this question, it is seen that a small amount of releasing factor causing the release of a much greater amount of cortisol which shows the example of hormone signal amplification.
Enzyme functioning is very much depends on it;s structure, and if it denatured due to deviation from normal physical conditions, then it won't function properly. Hence, your sentence is "True"
Hope this helps!
Heredity increases diversity among organisms by nonrandom mating, which is the preference of the organism to mate with another based on specific characteristics. Nonrandom mating has two forms. Inbreeding is the first form where organisms with the same genotypes will mate with each other resulting in minimal genetic diversity. Outbreeding is the second form where organisms of different genotypes will mate with each other resulting in an increase in genetic diversity. The variation in the heredity of an organism allows it to be more flexible and can also guarantee better survival rate of the population under the given environmental conditions.
Answer:
The interdependence of the worms and plants is an example of commensalism in a sense that as the worms burrow into the soil, it allows the soil to be<em> loosened</em> which then allows it to properly absorb water and carbon dioxide into its roots. This action <u>benefits the plants' growth.</u> However, such action of the worms,<em> neither benefit the worms nor does it cause any harm.</em>
Explanation:
"Commensalism" is a relationship between two things wherein <em>one benefits while the other is neutral</em>. This means<u> the other one doesn't benefit nor is it harmed.</u>
