Question

 What is the most likely explanation for how speciation occurs?

A. It occurs by more than one method.
B. It occurs by gradual changes.
C. It occurs only by geographic isolation.
D. It occurs only by natural selection.

Answer 1

The answer is (C) geographical isolation

Step-by-step explanation:

Speciation is most likely to occur when populations become geographically isolated from one another, and come to inhabit environments that differ significantly from one another.