Mutualistic behaviors
A) are common in nature when animals work together.
B) are rare because "slacking" is often profitable for individuals, not groups.
C) involve only kin and never unrelated individuals.
D) are profitable for the actor but not the recipient.
Correct Answer:
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Q6: The key to the evolution of altruism
Q7: Group selection
A) is likely to occur in
Q8: By definition, altruistic behaviors
A) incur a cost
Q9: Imagine a caregiver who helps raise a
Q12: Altruistic behavior is more likely
A) among kin
Q14: Altruism at first was a puzzle to
Q15: Hamilton's rule states that
A) altruism evolves only
Q15: The coefficient of relatedness (r) between mother
Q16: Kin selection predicts
A) that group selection is
Q20: Which of the following is true of
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