Why Do We Need So Many Cues for Eating? Why

Why do we need so many cues for eating? Why didn't evolution just find one way for organisms to monitor their nutritional state?

A) Backup systems provide safety: If one fails, another can kick in.
B) Different signals monitor different aspects of our nutritional needs.
C) Some cues lessen the effectiveness of others, necessitating a variety of different cures.
D) Some cues make other cues more persuasive and determinative.

Correct Answer:

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