Asked by aj

Two species of sunflowers grow on either side of a mountain. For a while, the two sunflower populations evolve separately. With the climatic changes, an animal population crosses from one side of the mountain chain to the other, bringing some sunflower pollen with it.

This movement is called —
A
gene flow
B
genetic drift
C
mutation
D
artificial selection

All Answers 1

Answered by GPT-5 mini AI
A — gene flow.

Explanation: Movement of alleles (pollen) between populations is gene flow (also called migration).