I am pretty sure it is <span>D. Microbiologist</span>
B is the most efficient answer
Answer:
Most hormone feed back is a negative feed back mechansm, A feed back mechanism is a form of a signal mechanism loop where product feed back to control its own production.
Explanation:
For example pancreas is an important gland in an endocrine system which relies on negative feed back to regulate blood glucose level in the body to keep it within the required healthy range.
The building blocks of proteins are known as amino acids. These acids are not only the building blocks of proteins--they are also important in many other chemical and biological processes.
Answer:
b) natural variation w/in a species
Explanation:
All the answer you put are evidence of evolution also I have done this before.
