Question

what did darwin theorize about the finches he found on the galapagos islands? the birds were not finches but different species. they had arrived at different times over the centuries. they were all descended from the same species.

Explanation:

Darwin's theory of evolution by natural selection suggests that species adapt to their environments over time. The Galapagos finches showed variations in beak shape and size, which he hypothesized were adaptations to different food sources. This led him to conclude that they had evolved from a common ancestor.

Answer:

They were all descended from the same species.