Evolution happens when? A: Over a very short amount of time
B: For individuals only
C: when the environment is perfectly suited for the organism
D: over a long period of time in response to natural pressures on organisms

D

Explanation:

It is basically a species changing itself to adapt to its environment

answer; i believe the correct answer is (a)0

the answer would be 2, if crossing over doesn’t occur 2 out of 4 of the daughter cells will have that allele.

hope this : )