49. Animal Behavior
Animal Behavior
Multiple Choice
Multiple ChoiceWhich of the following well-known sayings best summarizes the idea of reciprocal altruism?
A
A rolling stone gathers no moss.
B
A penny saved is a penny earned.
C
A bird in the hand is worth two in the bush.
D
Beauty is in the eye of the beholder.
E
You scratch my back, and I'll scratch yours.
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