Question

which statement best describes how geographic isolation can contribute to land animal speciation? a. geographic isolation physically separates populations but allows them to interact. b. geographic isolation physically separates populations and prevents them from interacting. c. geographic isolation causes genetic changes in individual organisms but allows them to interact. d. geographic isolation causes genetic changes in individual organisms and prevents them from interacting.

Explanation:

Geographic isolation is a physical separation of populations that stops gene - flow between them by preventing interaction. It doesn't directly cause genetic changes in individual organisms but rather creates separate gene pools over time.

Answer:

B. Geographic isolation physically separates populations and prevents them from interacting.