Question

A species of bird has slight variations in its beak size and shape. Some individuals with bigger beaks are better at cracking seeds. Some individuals with narrower beaks are better at hunting for bugs. An invasive species is introduced that hunts all of the bug population, wiping out that food source for the birds, so all they are left with is seeds.

In one to two sentences, explain how genetic variation from sexual reproduction can save this species from extinction. :)

Answer 1

Genetic variation from sexual reproduction can provide a diverse pool of traits within the bird population, increasing the likelihood that some individuals will possess beak sizes and shapes that are particularly effective at cracking seeds. As a result, these advantageous traits can enhance survival and reproduction, allowing the population to adapt and thrive in the absence of their former food source.