Capuchin monkeys often rub their bodies with a certain type : GMAT Critical Reasoning (CR)
Check GMAT Club Decision Tracker for the Latest School Decision Releases http://gmatclub.com/AppTrack

 It is currently 17 Jan 2017, 10:20

### GMAT Club Daily Prep

#### Thank you for using the timer - this advanced tool can estimate your performance and suggest more practice questions. We have subscribed you to Daily Prep Questions via email.

Customized
for You

we will pick new questions that match your level based on your Timer History

Track

every week, we’ll send you an estimated GMAT score based on your performance

Practice
Pays

we will pick new questions that match your level based on your Timer History

# Events & Promotions

###### Events & Promotions in June
Open Detailed Calendar

# Capuchin monkeys often rub their bodies with a certain type

Author Message
TAGS:

### Hide Tags

Manager
Joined: 23 Mar 2007
Posts: 176
Followers: 0

Kudos [?]: 1 [0], given: 0

Capuchin monkeys often rub their bodies with a certain type [#permalink]

### Show Tags

17 Jun 2007, 07:58
00:00

Difficulty:

(N/A)

Question Stats:

0% (00:00) correct 0% (00:00) wrong based on 2 sessions

### HideShow timer Statistics

Capuchin monkeys often rub their bodies with a certain type of millipede. Laboratorytests 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
If you have any questions
New!
Director
Joined: 13 Mar 2007
Posts: 545
Schools: MIT Sloan
Followers: 4

Kudos [?]: 70 [0], given: 0

### Show Tags

17 Jun 2007, 08:55
C.
Manager
Joined: 21 Oct 2005
Posts: 99
Followers: 1

Kudos [?]: 16 [0], given: 0

### Show Tags

17 Jun 2007, 09:00
Obviously C
Manager
Joined: 22 May 2007
Posts: 115
Followers: 1

Kudos [?]: 2 [0], given: 0

### Show Tags

18 Jun 2007, 06:50
I go for B.

Please explain why C is so obvious too you?

I think there is more support coming from the fact that the two substances are insect repellers rather then the link between rainseason and presence of insects.
Senior Manager
Joined: 04 Jun 2007
Posts: 373
Followers: 1

Kudos [?]: 62 [0], given: 0

### Show Tags

18 Jun 2007, 07:36
ronron wrote:
I go for B.

Please explain why C is so obvious too you?

I think there is more support coming from the fact that the two substances are insect repellers rather then the link between rainseason and presence of insects.

We want something that will strengthen the hypothesis that monkeys are rubbing the milipedes mainly to prevent mosquito bites, answers A, B, D & E do not link mosquitoes with monkey's milipede usage. Whereas C shows monkeys rarely rub milipedes on their bodies but do so during peak mosquito season, thus drawing a relation between mosquitos and their milipede rubbing activity, strengthening the scientists' hypothesis.

Therefore, the answer is a clear C.
Manager
Joined: 26 Feb 2007
Posts: 115
Followers: 1

Kudos [?]: 2 [0], given: 0

### Show Tags

18 Jun 2007, 16:48
C.
Intern
Joined: 28 Jun 2005
Posts: 14
Followers: 0

Kudos [?]: 1 [0], given: 0

### Show Tags

18 Jun 2007, 17:13
abhinava wrote:
Capuchin monkeys often rub their bodies with a certain type of millipede. Laboratorytests 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

This is how I thought

A - ruled out (irrelevant)
B - several other varieties of insects (ruled out because we only need to focus on mosquitoes)
C - "rarely". The passage clearly states "often rub". So according to me, ruled out
E - ruled out (irrelevant)

I believe "D" is the best choice because "Although the capuchins eat several species of insects, they do not eat the type of millipede they use to rub their bodies BECAUSE doing so helps protect them from mosquitoes.
Re: CR --->Capuchin Monkeys   [#permalink] 18 Jun 2007, 17:13
Similar topics Replies Last post
Similar
Topics:
1 Capuchin monkeys often rub their bodies with a certain type 15 01 Aug 2009, 11:50
Capuchin monkeys often rub their bodies with a certain type 10 03 Aug 2008, 11:35
Capuchin monkeys often rub their bodies with a certain type 8 29 Nov 2007, 10:31
Capuchin monkeys often rub their bodies with a certain type 2 15 Jun 2007, 13:24
Capuchin monkeys often rub their bodies with a certain type 3 02 Jun 2007, 09:07
Display posts from previous: Sort by