The graphic shows how to break down the subject of a source. The first step in determining a source is to

uncover objective ideas.
examine motive.
identify the subject.
determine bias.

sorry, is there a picture? i do not see any arrows.

wut? unius0123 wut?

i believe it's c. the trait for large beaks will be passed on to future generations through natural selection.

since eventually smaller beaks would have to find another source of food or even eventually just die out from the lack of food.

answer; cnidarians;