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Capuchin monkeys often rub their bodies with a certain type

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Re: CR - monkeys [#permalink] New post 28 May 2010, 10:12
mba4me wrote:
Capuchin monkeys often rub their bodies with a certain type of millipede. Laboratory tests show that secretions from the bodies of these millipedes are rich in two chemicals that are potent mosquito repellents, and mosquitoes carry parasites that debilitate capuchins. Some scientists hypothesize that the monkeys rub their bodies with the millipedes because doing so helps protect them from mosquitoes.

Which of the following, if true, provides the most support for the scientists’ hypothesis?

A. A single millipede often gets passed around among several capuchins, all of whom rub their bodies with it.
B. The two chemicals that repel mosquitoes also repel several other varieties of insects.
C. The capuchins rarely rub their bodies with the millipedes except during the rainy season, when mosquito populations are at their peak.
D. Although the capuchins eat several species of insects, they do not eat the type of millipede they use to rub their bodies.
E. The two insect-repelling chemicals in the secretions of the millipedes are carcinogenic for humans but do not appear to be carcinogenic for capuchins.


Hypothesis: monkeys rub their bodies with the insect to protect from mosquitoes.
Which of the following supports the most this hypothesis:
E. Doesn't appear to support the hypothesis.
D. Somehow supports the hypothesis.
C. Shows that they do it in purpose, when needed, thus greatly supporting the hypothesis.
A and B don't relate directly to the hypothesis.

I think C is the best choice.
Re: CR - monkeys   [#permalink] 28 May 2010, 10:12
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Capuchin monkeys often rub their bodies with a certain type

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