Which of the following evolutionary processes is not acting when two groups of organisms are identified as different species according to the Biological Species Concept?
A) mutation
B) gene flow
C) sexual selection
D) natural selection
E) genetic drift

Question

Quizplus · Accepted Answer

According to the Biological Species Concept, different species are defined as populations that are reproductively isolated from each other, meaning that they cannot interbreed and produce fertile offspring. Gene flow, or the transfer of genetic material between populations, would prevent reproductive isolation and therefore would not be a factor in the differentiation of species. Mutation, natural selection, sexual selection, and genetic drift could all play a role in driving the evolution of traits that contribute to reproductive isolation and the formation of new species.

Which of the Following Evolutionary Processes Is Not Acting When