Some finches on the Galápagos Islands feed on insects,an unusual food for finches to eat.Which of the following statements about these finches is most likely to be true?
A) They could not survive if they were moved from their island.
B) They observed and learned this feeding style from local birds.
C) They switched their diet to insects because insects are nutritionally superior.
D) They gradually adapted to this feeding style because they had no competition from typical insect-eating birds.

Question

Quizplus · Accepted Answer

The fact that there are no typical insect-eating birds on the Galápagos Islands suggests that competition for insect food sources is low. This would make it easier for finches to gradually adapt to eating insects as part of their diet. Option A is not necessarily true, as the finches may have adapted to their island environment over time. Option B is unlikely, as there is no evidence that these finches observed and learned from local birds. Option C is unsupported, as there is no information provided to suggest that insects are nutritionally superior to other foods available on the island.

Some Finches on the Galápagos Islands Feed on Insects,an Unusual