darwins finches evolved on an island. what is the main reason that islands often provide good examples of…
darwins finches evolved on an island. what is the main reason that islands often provide good examples of evolution?\no they have many niches.\no they have many organisms that live on them.\no they allow for automatic biogeographic isolation.\no they allow for many variations to exist in species.
Answer
Brief Explanations:
Islands are geographically isolated. This isolation reduces gene - flow between populations on the island and those on the mainland. As a result, populations on islands can evolve independently due to different selection pressures, mutations, and genetic drift. Biogeographic isolation is a key factor in the evolution of unique species and traits on islands.
Answer:
They allow for automatic biogeographic isolation.