The ability to recognize specific individuals has profound implications for the evolution of complex social behaviors such as re

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问题     The ability to recognize specific individuals has profound implications for the evolution of complex social behaviors such as reciprocal altruism. Many researchers assumed that recognition of individuals, a phenomenon predominantly observed in laboratory studies of fish, might also operate extensively in free-ranging fish populations, where it could underpin complex interactions. In fact, evidence of individual recognition in free-ranging fish populations is equivocal. The possibility exists that for many species, individual recognition observed in the laboratory might be an artifact of experimental designs, which enforce prolonged interaction between individuals and which prevent the diluting effects on social structure of immigration into and emigration from the shoal, factors that in nature would erode group stability and prevent the learning of individual identities.
The author would most likely agree with which of the following statements about the prevalence of specific individual recognition that occurred in fish in the laboratory studies discussed?

选项 A、It suggests that the laboratory studies were well designed to simulate the natural habitats of the fish studied.
B、It suggests that the advantages that individual recognition provides to free-ranging fish differ significantly from those provided to fish in laboratory studies.
C、It might have been inflated due to continued exposure to the same individuals.
D、It may occur with greater frequency as the number of individuals in a population increases.
E、It sheds light on the phenomenon of reciprocal altruism among free-ranging fish.

答案C

解析 对应最后一句,实验室的条件阻止了野生状况下个体识别能力的稀释,因此实验室条件下的个体识别能力被夸大了。
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本试题收录于: GRE VERBAL题库GRE分类
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