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Capuchin monkeys often rub their bodies with a certain type
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15 Jun 2007, 14:24
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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.
Explain please
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Re: Capuchin monkeys often rub their bodies with a certain type
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15 Jun 2007, 15:05
C it is .
As when its not rainy monkeys dnt rub their bodies against milipeds.
In rain , mosquitos are more and monkeys rub their bodies to get the repellants for the protections against mosquitos and thus strengthens the argument.
Re: Capuchin monkeys often rub their bodies with a certain type
[#permalink]
15 Jun 2007, 15:13
Quote:
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.
Explain please
I excluded A b/c that answer explains the process of how monkeys apply the millipede's chemicals. The hypothesis should circle around why not how.
I excluded B b/c "other variety of insects" are not mentioned in the passage and are out of scope.
I excluded D b/c the hypothesis has nothing to do with which type of millipede the monkey eat versus which ones they rub on their body.
I excluded E b/c the fact that the checmicals are carcinogenic for humans is never mentioned in the passage and is out of scope.
Therefore, I would choose C as my best answer.
Archived Topic
Hi there,
This topic has been closed and archived due to inactivity or violation of community quality standards. No more replies are possible here.
Still interested in this question? Check out the "Best Topics" block above for a better discussion on this exact question, as well as several more related questions.
Thank you for understanding, and happy exploring!
gmatclubot
Re: Capuchin monkeys often rub their bodies with a certain type [#permalink]