Question

After the drought of 1977, researchers hypothesized that on the Galápagos Island Daphne Major, medium ground finches with large, deep beaks survived better than those with smaller beaks because they could more easily crack and eat the tough Tribulus cistoides fruits. A tourist company sets up reliable feeding stations with a variety of bird seeds (different types and sizes) so that tourists can get a better look at the finches. Which of these events is now most likely to occur to finch beaks on this island?

Answer 1

Increased variation in beak size and shape over time

Step-by-step explanation:

By facilitating feeding stations to the finches, there will be some finches that, differently from others, will not have to crack and eat the tough Tribulus Cistoides fruits. They will have easier access to their food, and this will affect the size and shape of their beak.