Question

Bio U06 USA FY21

Question: 1.11
Originally, two species of finches lived in the Maldives. One species had long, narrow books for capturing insects from within troes. The other species had larger thicker books for cracking soods. Following an increase in
logging, this ecosystem's population of finches with narrow books began to decline
How does this event support the theory of evolution?
It supports the idea of a common ancestor
Oltillustrates the principle of natural selection
It provides an example of behavioral isolation
It demonstrates analogous structures and evolution

Answer 1

It illustrates the principle of natural selection.

Step-by-step explanation:

for natural selcection to occur things will change just how the was the finches caught and ate their food

Answer 2

I'm thinking maybe B, illustrates the principle of natural selection.

Step-by-step explanation:

This example shows that, once a particular event happens in a species' ecosystem that negatively affects their lifestyle, natural selection occurs and kills off those with a disadvantageous adaptation (in this case the narrow-beaked finches, since they could no longer eat insects but did not have the beak size to crack seeds), allowing those with the advantageous adaptation (in this case, the thicker-beaked birds) to prosper.