Answer:
C
Explanation:
Darwinian fitness means the ability to survive, find a mate and produce offspring
The answer is c because dopamine helps the body deal with pain and reduces symptoms because of that fact.
Answer:
The male birds have to be more colorful in order to get the attention of a female bird so that they can mate. The female doesn't need to be colorful because she is not the one that attracts male birds.
Organelles must work together and their activities must be coordinated .
