Smiling when happy seems to be an expression common to all human societies, suggesting that this behavior is probably:
A) genetic in origin.
B) learned.
C) altruistic.
D) based on social standing.
Correct Answer:
Verified
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A)the selection of a
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Q48: Male honeybees are called:
A)drones.
B)workers.
C)slaves.
D)waggles.
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A)Parent birds
Q52: Once learned, behaviors cannot be changed. True
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Q54: Which of the following is a disadvantage
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