On island x, he saw both species of finches. on island y, he only saw the finch on the right. based on these observations, what is the most likely conclusion darwin would have made?

on island x the species needed to adapt because they were being subject to predators which didn't inhabit island y.  

plato users:

d.  

there was a variety of food available on island x, but there were only large seeds and nuts on island y.

all matter is made up of atoms

in any element all atoms are the same

elements in a compound are always in a constant ratio: apex

i believe your answer would be c.. : )