Our knees are a compromise that allow us to be bipedal. More recent ancestors of humans lost the ability to make vitamin C, but we figured out a way to solve this problem with a change in diet.

Question

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2 points
cause/effect
compare/contrast
description
problem/solution
sequence

Answer 1

cause/effect, problem/solution

Answer 2

you cant pick both

Answer 3

In that case, the suitable structure for the given information would be problem/solution. The problem presented is that more recent ancestors of humans lost the ability to make vitamin C. The solution was found through a change in diet.