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Which social interaction is best described as the opposite of altruism in terms of its effect on donor and recipient fitness?


A) cooperation
B) selfishness
C) spitefulness
D) dominance

E) B) and C)
F) A) and B)

Correct Answer

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A hummingbird guarding a hummingbird feeder is an example of


A) dominance hierarchy.
B) altruism.
C) territoriality.
D) selfishness.

E) B) and C)
F) A) and D)

Correct Answer

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