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
Independent variable: is the UV light exposure
Control group: people not exposed (sample b)
Dependent variable: skin cancer
Experimental group: (sample A)
Using your reflexes can prevent you from getting hurt in the first place.
Answer:
A decomposer is found at the end of a food chain.
