B.) the available food on the islands
Since these different beaks were adaptions part of their evolution to be able to be more fit to survive with the food available on the island
I’m pretty sure they are Consumers?
The answer is C. anatomy because anatomy is the study of structure while physiology is the study of how the function works either mechanically or etc.
Umm that really is a lot of words there but I will try to find a explanatory answer
