Homework Answers
Answer option c.They form a monophyletic group to the exclusion of finches species on the mainland.
Darwin’s finches is a classical example of adaptive radiation.Darwin’s finches have evolved into 15 species differing to body size, beak shape,song and feeding habit.
Option a,d and e are wrong.They all eat different food.There are bud eaters,Insect eaters,cactus eaters and seed eaters.
Option b is also incorrect.Difference in beak size and shape is primarily due to natural selection.Species differ in beak size and shape,reflecting adaptation to different diets.
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