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 - no response given

increased rainfall
increased rainfall - no response given

differing availability and types of food resources
differing availability and types of food resources - no response given

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**. The variations in food resources led to the evolution of different beak shapes and sizes among the finches, allowing them to exploit different ecological niches.