Which of the following factors led to the diversification of Darwin's finches?
A) Environmental conditions vary among the different islands.
B) Most of the islands are sufficiently distant from one another such that dispersal among populations on different islands is limited.
C) Because the Galápagos Islands are only 100 km from Ecuador, they receive a continual input of new genes from the mainland.
D) Both a and b
E) Both a and c

Question

Quizplus · Accepted Answer

Environmental conditions vary among the different islands, and most of the islands are sufficiently distant from one another such that dispersal among populations on different islands is limited, leading to the diversification of Darwin's finches. However, the Galápagos Islands are 1000 km from Ecuador, not 100 km, and there is limited gene flow from the mainland. Therefore, option C is incorrect.

Which of the Following Factors Led to the Diversification of Darwin's