Question

What did Darwin observe about finches in the Gal�pagos Islands?

a. Their feathers were adapted to match their environment.
b. Their beaks were adaptations related to the foods the finches ate.
c. They had homologous body structures with other flying vertebrates.
d. They were unrelated to mainland bird species.

Answer 1

b. their beaks were adaptions related to the foods the finches ate
Darwin concluded that the finches descended from a common ancestor, yet with time, the finches' beaks adapted to make food easier to access.