Natural selection
A)works on preexisting variation in a population.
B)works on traits acquired through an organism's lifetime.
C)works only on deleterious traits.
D)works only on advantageous traits.

Question

Quizplus · Accepted Answer

Natural selection works on preexisting variation in a population. This means that individuals within a population have variation in their traits, and those that have traits that best suit their environment are more likely to survive and pass on those traits to their offspring. It does not work on traits acquired through an organism's lifetime or solely on deleterious or advantageous traits.

Natural Selection