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# Adult female rats who have never before encountered rat pups

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Manager
Joined: 31 Aug 2011
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15 Aug 2012, 00:00
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25% (medium)

Question Stats:

73% (01:45) correct 27% (01:35) wrong based on 128 sessions

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Adult female rats who have never before encountered rat pups will start to show maternal behaviors after being confined with a pup for about seven days. This period can be considerably shortened by disabling the female’s sense of smell or by removing the scent-producing glands of the pup.
Which of the following hypotheses best explains the contrast described above?
(A) The sense of smell in adult female rats is more acute than that in rat pups.
(B) The amount of scent produced by rat pups increases when they are in the presence of a female rat that did not bear them.
(C) Female rats that have given birth are more affected by olfactory cues than are female rats that have never given birth.
(D) A female rat that has given birth shows maternal behavior toward rat pups that she did not bear more quickly than does a female rat that has never given birth.
(E) The development of a female rat’s maternal interest in a rat pup that she did not bear is inhibited by the odor of the pup.
[Reveal] Spoiler: OA

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Senior Manager
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Re: Adult female rats who have never before encountered rat pups [#permalink]

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20 Aug 2012, 17:08
Option E: Since maternal interest is inhibited by odor of pup, removing the scent-producing glands of the pup will make the duration shorter.
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Re: Adult female rats who have never before encountered rat pups [#permalink]

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18 Dec 2015, 16:17
Hello from the GMAT Club VerbalBot!

Thanks to another GMAT Club member, I have just discovered this valuable topic, yet it had no discussion for over a year. I am now bumping it up - doing my job. I think you may find it valuable (esp those replies with Kudos).

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Re: Adult female rats who have never before encountered rat pups   [#permalink] 18 Dec 2015, 16:17
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