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In the 1960's . long-term studies of primate behavior often [#permalink]
01 Apr 2004, 07:23
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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, bread 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.
(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 behavior in the
(E) The way the tamarins were kept in cages did not affect their
Agree with E
C) is an explicit claim of the argument and is not an assumption needed for the conclusion to stand
A) Protecting genetic inheritance has nothing to do with mating behaviors although the wording could have been misleading _________________
Fellas: I chose "E" too. I got this question from the GMAT+ material [gmatplus6]. The OA in the answer key is "D".
Is the answer key wrong? Or am i missing something here. I've been over this question and dont see how "male tamarin monkeys do not display aggressive behavior in the wild" is the OA. This answer choice is too far a stretch and here is how/why:
This answer choice requires us to assume that aggresive is synonymous to "reproducing widly". If that were the case then i can see how this choice would be the assumption.
But we dont know that. Am i missing something here.......Anyone care to explain, pls.