Finch species living on the Galapagos Islands exhibit a variety of beak types that favor different foods. Finches that eat seeds and plant parts have beaks of the shorter, thicker variety, while finches that eat insects and other small organisms have thin, pointed beaks. 78% of the finches on an island in the Galapagos have beaks that are identical to Finch 1. What does this tell you about the availability of food for the finches on this island?
A) There is an abundance of insects.
B) There is an abundance of seeds and nuts.
C) There is a wide variety of foods for the finches to eat.
D) Plants have died out and there are only insects for food

There is an abundance of seeds and nuts, because Finch 1 has a beak type that favors seeds and nuts as a food source. The majority of finches on this island, 78%, have this beak type. There must be a plentiful supply of food, seeds and nuts, for Finch 1 to survive and reproduce. Since the other beak types are not as numerous, we can infer that their food supplies are limited as are their numbers.