大全-2-15

Snazzy · 发表于 2004-2-12 04:49:00

15.In the 1960's . long-term studies of primate behavior often used as subjects tamarins, small monkeys that were thought ideal because they require only small cages, breed frequently, and grow quickly. Field studies were not used because they were costly and difficult. Tamarins were kept caged in male-female pairs, because otherwise, serious fights erupted between unrelated females. On the basis of the fact that breeding occurred, tamatins were viewed as monogamous.
The view taken by the researchers concerning the monogamy of tamarins depended on a questionable assumption.Which of the following could have served as that assumption?
(A) The suppression of fighting between related females serves to protect their common genetic inheritance.Y
(B) Adult male tamatins contribute to the care of tamarin infants.
(C) The social system of tamarins requires monogamous pairing.
(D) Male tamarin monkeys do not display aggressive behaviour in the wild.
(E) The way the tamarins were kept in cages did not affect their mating behavior.

E, don't know why, thanks

terp · 发表于 2004-2-12 07:50:00

The researcher studied the caged tamarins' behavior instead of the wild one's (field study). if the caging changing the tamarins' behavior, the study is not validated. So E is the questionable assumption.

大全-2-15

大全-2-15

所属分类: GMAT考试

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