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.

(2 points)

In one to two sentences

Answer 1

Genetic variation resulting from sexual reproduction can increase the diversity of beak sizes and shapes within the bird population, allowing for a greater likelihood that some individuals possess favorable traits for seed cracking. This adaptability enhances the species' resilience to environmental changes, such as the absence of bugs, thereby reducing the risk of extinction.