Choose the true statements about the diversity of Darwin's finches on the Galápagos Islands.Check all that apply.
A)All of the finch species share a common ancestor that colonized the islands.
B)Prior to the adaptive radiation of finches,there were no unoccupied habitats in the Galápagos Islands.
C)Competition among finches for food sources led to character displacement of beak shapes.
D)Beak shape is not an important key innovation.

Question

Quizplus · Accepted Answer

A is true as all Darwin's finches are believed to have descended from a common ancestor that arrived on the Galápagos Islands. C is also true as competition for food sources led to the evolution of different beak shapes among different species of finches. B is false as there were unoccupied habitats on the islands that allowed the finches to colonize and diversify. D is false as beak shape is a key innovation that allowed the finches to exploit different food sources.

Choose the True Statements About the Diversity of Darwin's Finches