Kin selection is a form of natural selection in which ____
a. dominant individuals share resources disproportionately with their close relatives
b. individuals help relatives only if they are likely to return the favor in the future
c. group members sacrifice their own reproductive success to help individuals who are not their direct
descendants
d. shared alleles for altruism are perpetuated if the assisted animals produce more offspring than the helper could
have produced if he had not helped
e. shared alleles for altruism are perpetuated if the helper produces more offspring than the relatives that he aids
ANSWER: d
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