Question

which statement best represents how structure relates to function?
a horses mane is often black.
chimpanzees can be taught sign language.
cows have flat teeth for breaking down grass.
some dogs live longer than others.

Explanation:

The structure - function relationship means that the form of a biological structure (like teeth) is related to its function. Cows' flat teeth are a structure adapted for the function of breaking down grass. The other statements do not relate structure to function.

Answer:

C. Cows have flat teeth for breaking down grass.