Cristae are folds of the inner mitochondrial membrane. It takes place on the membrane as a part of the cellular respiration to create ATP.
So B, Cristae is your answer. <span />
Answer:
Natural selection
Explanation:
The genetic variation on which natural selection acts may occur randomly, but natural selection itself is not random at all. The survival and reproductive success of an individual is directly related to the ways its inherited traits function in the context of its local environment.
