I think the answer is sperm or eggs? i'd need context
A.
Explanation: Because he learned it in previous years when it was different, now it becomes hard to learn the new information.
Answer: You Palpatine, I'd still have you.
Explanation:
They both work by being an immune system
The answer is B. Stabilizing selection. Stabilizing selection is a type of natural selection. Stabilizing selection is the opposite of disruptive selection where extreme values of a trait are favored over intermediate values.