In the example of the finches on the Galapagos, what is the cause of the geographic isolation?
A. the ocean
B. the foods the finches ate
C. the mating behavior of the birds
D. the climate on the different islands
The Galapagos Islands are geographically isolated due to the Ocean that surrounds the islands themselves. The finches can't fly far enough to make it past the vast ocean to other mainland so they are stuck on the island and must adapt to what the island provides for food in varying areas.
