Answer:
Part A....B
Part B....C
Explanation:
It should be understood that Mice are always first used to clinical test especially for drugs or other things that are supposed to be for human use, this is because Mice and human genetic disorders have arisen from conserved and related evolutionary processes. Therefore, when the clinical trial or test produces a positive result in the Mice, it is almost certain that the result will be the same in human.
Now in part B. When the result result is different, it might be because of the differences in anatomy and physiology might hide or change development and symptoms of disease. And that is the reason why, the result of a particular drug differs from person to person.
Which is a density independent factor limiting population growth?
The density of a population can be regulated by various factors, including biotic and abiotic factors and population size. Density-dependent regulation can be affected by factors that affect birth and death rates such as competition and predation.
Hope this helps you:D
They lack roots and any sort of transportation system within their them, so they place themselves in moist environments close to water. This way, they can absorb water quickly and easily.
The dead plants and animals are the form of organic nitrogen. Microorganisms utilize these materials and break them down and convert into nitrates, which is a utilizable form and is used by plants and animals. The process is called as nitrogen fixation.