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.

the question isn't complete here so i can't right an answer '_'

glacial erosion, the picking up and movement of earth beneath a glacier, is also referred to as plucking. erosion and transportation of individual pieces of bedrock, especially large "joint block occur as a result of this glacial erosion. plucking is type of erosion in which rocks become frozen into the bottom and sides of the glacier.as the glacier moves downhill it 'plucks' the rocks frozen into the glacier from the ground.