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.

Question

In one to two sentences, explain how genetic variation from sexual reproduction can save this species from extinction. And write it like a 7 grader

Answer 1

The birds with the narrower beaks might start mating with birds that have bigger beaks, and their babies could end up with a mix of both sizes. This new mix of big and small beaks could help the birds adapt to the change in food sources and survive.