The biological species concept emphasizes whether populations
A) look the same.
B) share common ancestry.
C) have similar ecological requirements.
D) can have gene flow between them.
E) have similar biochemical pathways.

Question

Quizplus · Accepted Answer

The biological species concept defines a species as a group of populations that can interbreed and produce viable, fertile offspring, meaning that they must be able to exchange genetic material and have gene flow between them. Thus, choice D is the correct answer. Choices A, B, C, and E are not the defining criteria of the biological species concept.

The Biological Species Concept Emphasizes Whether Populations