Question

Which major event led to the eventual adaptive radiation of Darwin’s finches from one common ancestor (i.e., what is the primary reason they evolved)?(1 point)
Responses

drought
drought

increased rainfall
increased rainfall

differing availability and types of food resources
differing availability and types of food resources

different predators

Answer 1

The primary reason for the adaptive radiation of Darwin's finches from one common ancestor is **differing availability and types of food resources**. This variation in food sources led to the evolution of different beak shapes and sizes, allowing the finches to exploit various ecological niches.