In which of the following scenarios is kin selection least important?
A. Many female animals have evolved to produce nutrient-rich secretions that they use to feed their young
B. Vampire bats will quickly die without feeding, but they aren't always successful in finding a meal. However, unsuccessful bats ask for and usually receive regurgitated blood from successful members of their roosting group
C. Belding's ground squirrel females stay in the same population from birth while males tend to disperse to other groups, females tend to make alarm calls more often than males
D. Eusocial animals evolve sterile worker castes
Answer: B. Vampire bats will quickly die without feeding, but they aren't always successful in finding a meal. However, unsuccessful bats ask for and usually receive regurgitated blood from successful members of their roosting group
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