Darwin's finches on the Galapagos Islands are a classic example of whi…

Question

Darwin's finches on the Galapagos Islands are a classic example of which evolutionary process?

Accepted Answer

D. {'text': 'Adaptive radiation from a single ancestral form', 'label': 'D'}

Darwin observed many varieties of finches on a single island; from an original seed-eating ancestor, forms with altered beaks arose to exploit insectivorous and vegetarian niches. Evolution of different species in a given geographical area starting from a point and radiating to other habitats is adaptive radiation.

Answer

{'text': 'Saltation, with new species arising in a single mutation', 'label': 'A'}

Answer

{'text': 'Convergent evolution with mainland passerine birds', 'label': 'B'}

Answer

{'text': 'Genetic drift in an isolated founder population', 'label': 'C'}