Darwin’s observations of finches indicated descent with

Darwin’s observations of finches indicated descent with Modification in bills.
They had become adapted to eating different diets, Beak shape of finches is affected by the type of food available to eat. Finches are generally seedeaters and eat a variety of plant seeds. There are times though that their diet will be composed of insects and certain fruits, berries and vegetation.

Interacting group of various species in a common location. for example, a forest of trees and undergrowth plants, inhabited by animals and rooted in soil containing bacteria and fungi, constitutes a biological community.