A critical requirement of Darwin's theory is
A)an uncontrolled growth in all species.
B)that the earth is relatively young.
C)all individuals of any given species be identical.
D)genetic variation is possible in nature.
E)all species are made at the same timE.

Question

Quizplus · Accepted Answer

Darwin's theory requires genetic variation to exist in the population, which provides the raw material for natural selection to act upon. Without genetic variation, there would be no differences between individuals for natural selection to favor or select against.

A Critical Requirement of Darwin's Theory Is