GMAT Question of the Day: Daily via email | Daily via Instagram New to GMAT Club? Watch this Video

It is currently 22 Feb 2020, 22:08

Close

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
Your Progress

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

Not interested in getting valuable practice questions and articles delivered to your email? No problem, unsubscribe here.

Close

Request Expert Reply

Confirm Cancel

Adult female rats who have never before encountered rat pups

  new topic post reply Question banks Downloads My Bookmarks Reviews Important topics  
Author Message
TAGS:

Hide Tags

Find Similar Topics 
Manager
Manager
avatar
Joined: 15 Jun 2007
Posts: 58
Adult female rats who have never before encountered rat pups  [#permalink]

Show Tags

New post 03 Aug 2007, 08:11
5
21
00:00
A
B
C
D
E

Difficulty:

  15% (low)

Question Stats:

79% (01:45) correct 21% (02:01) wrong based on 1022 sessions

HideShow timer Statistics

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.
Most Helpful Expert Reply
GMAT Club Verbal Expert
User avatar
D
Status: GMAT and GRE tutors
Joined: 13 Aug 2009
Posts: 3162
Location: United States (CO)
GMAT 1: 780 Q51 V46
GMAT 2: 800 Q51 V51
GRE 1: Q170 V170

GRE 2: Q170 V170
Re: Adult female rats who have never before encountered rat pups  [#permalink]

Show Tags

New post 17 Aug 2017, 06:49
5
4
nikhil890 wrote:
i cant be able to figure out between d and e

We need something that explains why the amount of time it takes for adult female rats to start showing maternal behaviors "can be considerably shortened by disabling the female's sense of smell or by removing the scent-producing glands of the pup." So we need to compare adult females who CAN pick up the scent of the pups to adult females who CANNOT pick up the scent of the pups.

Quote:
(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.

We are not trying to explain a difference between female rats who have given birth and female rats who have never given birth. Instead, we are trying to compare adult females who CAN pick up on the scent of the pups to adult females who CANNOT pickup on the scent of the pups. Choice (D) does not explain why the group who cannot pick up the scent shows maternal behaviors in a shorter amount of time. Thus, (D) should be eliminated.

Quote:
(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.

Ah ha... normally, an adult female rat will start showing maternal interest in a pup that she did not bear after about a week. If this maternal interest is normally inhibited by the odor of the pup, we can infer that the time would be shortened if the female could NOT smell the odor of the pup.

For example, if the female's sense of smell has been disabled or if the scent-producing glands of the pup have been removed, the adult female will not be able to smell the pup. This would remove a factor that, according to choice (E), normally inhibits maternal interest. As a result, those maternal interests would be developed in LESS time than usual.

Choice (E) explains the difference described in the passage and is the best answer.

I hope that helps!
_________________
GMAT/GRE tutors @ www.gmatninja.com (we're hiring!) | GMAT Club Verbal Expert | Instagram | Blog | Bad at PMs

Beginners' guides to GMAT verbal: RC | CR | SC

YouTube LIVE verbal webinars: all videos by topic

SC articles & resources: How to go from great (760) to incredible (780) on GMAT SC | That "-ing" Word Probably Isn't a Verb | That "-ed" Word Might Not Be a Verb, Either | No-BS Guide to GMAT Idioms | "Being" is not the enemy | WTF is "that" doing in my sentence?

RC, CR, and other articles & resources: All GMAT Ninja articles on GMAT Club | Using LSAT for GMAT CR & RC |7 reasons why your actual GMAT scores don't match your practice test scores | How to get 4 additional "fake" GMAT Prep tests for $29.99 | Time management on verbal

SC & CR Questions of the Day (QOTDs), featuring expert explanations: All QOTDs | Subscribe via email | RSS

Need an expert reply? Hit the request verbal experts' reply button; be specific about your question, and tag @GMATNinja. Priority is always given to official GMAT questions.
General Discussion
Manager
Manager
avatar
Joined: 15 Jun 2007
Posts: 58
Re: Adult female rats who have never before encountered rat pups  [#permalink]

Show Tags

New post 03 Aug 2007, 12:39
why does the odor INHIBITS the interest? this passage reads: it is the odor that STIMULATES the interest...
SVP
SVP
avatar
Joined: 29 Mar 2007
Posts: 1748
Re: Adult female rats who have never before encountered rat pups  [#permalink]

Show Tags

New post 03 Aug 2007, 21:41
stevegt wrote:
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.


E.

We need something to connect the two statements above. This connection preferably needs to be explained by an odor given off by the pups. This odor or scent has something to do with why the females do not show maternal behavior for at least seven days.
Senior Manager
Senior Manager
avatar
Joined: 29 Jul 2006
Posts: 471
Re: Adult female rats who have never before encountered rat pups  [#permalink]

Show Tags

New post 04 Aug 2007, 02:02
stevegt wrote:
why does the odor INHIBITS the interest? this passage reads: it is the odor that STIMULATES the interest...


The author never says that odor stimulates the interest...may be the interest was developed by something else(cute rats may be)...but this interest is affected by the odor in an adverse manner.
Senior Manager
Senior Manager
avatar
Joined: 14 Jun 2007
Posts: 349
Re: Adult female rats who have never before encountered rat pups  [#permalink]

Show Tags

New post 05 Aug 2007, 12:00
2
stevegt wrote:
why does the odor INHIBITS the interest? this passage reads: it is the odor that STIMULATES the interest...



you are mentally filling in the wrong gaps for this question without realizing it. The test takers employ psychologists and all sorts of PhD's just for this reason. nowhere did it say odor stimulates interest.

yes, common sense and experience tells us the odor stimulates interest if the rat pup is the actual offspring of the mommy rat. your brain filled in this gap for you, which is why you got it wrong. The question was designed just for this purpose.

the stimulus tells us that odor inhibits maternal instincts if it isn't the rats actual child. over time, a rat will take care offspring that isn't hers. take the odor or the ability to smell away, and it will do it quicker. which is why E is the answer.
Intern
Intern
avatar
Joined: 21 Jul 2012
Posts: 8
Re: Adult female rats who have never before encountered rat pups  [#permalink]

Show Tags

New post 21 Dec 2012, 08:24
3
This question took me a lot of time for review. So I provide my reasoning here for someone who stuck with brain.

Premise: female rates encountered pups --> trigger maternal behaviors after 7 days
Condition: disable sense or removing glands --> period of triggering will be shortened (less than 7 days)

(E) provide us this connection: removed odor --> trigger maternal interest
Senior Manager
Senior Manager
avatar
S
Joined: 17 Sep 2016
Posts: 337
Re: Adult female rats who have never before encountered rat pups  [#permalink]

Show Tags

New post 15 Dec 2016, 19:02
does anyone think that "the period" stands for "seven days", like me ?

when I read this question, I am totally mess because I cannot understand the logic of the prompt , if shorten "seven days", then damage the link between smell and odor.

while E states that no odor, no maternal behavior.

what a poor verbal
Current Student
avatar
S
Joined: 21 Oct 2017
Posts: 79
Location: France
Concentration: Entrepreneurship, Technology
GMAT 1: 750 Q48 V44
GPA: 4
WE: Project Management (Internet and New Media)
Re: Adult female rats who have never before encountered rat pups  [#permalink]

Show Tags

New post 17 Nov 2017, 19:09
Hi everyone. I understand how E connects both statements from the passage, and how other answer choices are unsatisfactory.

However, can someone help me understand why I should not be bothered by the following:

If, according to E, the development of a female rat's maternal interest is inhibited by the odor, then how does one explain that after being confined with a pup for about seven days it starts showing maternal behavior?
My feeling is that in science, and in English in general, the meaning of the verb "to inhibit" is quite strict. So unless the rat's sense of smell is disable / the scent-producing glands of the pup are removed, there should be no development of maternal interest whatsoever.

Thanks for your help!
GMAT Club Verbal Expert
User avatar
S
Joined: 20 Nov 2016
Posts: 261
Re: Adult female rats who have never before encountered rat pups  [#permalink]

Show Tags

New post 18 Nov 2017, 08:59
1
Hadrienlbb wrote:
Hi everyone. I understand how E connects both statements from the passage, and how other answer choices are unsatisfactory.

However, can someone help me understand why I should not be bothered by the following:

If, according to E, the development of a female rat's maternal interest is inhibited by the odor, then how does one explain that after being confined with a pup for about seven days it starts showing maternal behavior?
My feeling is that in science, and in English in general, the meaning of the verb "to inhibit" is quite strict. So unless the rat's sense of smell is disable / the scent-producing glands of the pup are removed, there should be no development of maternal interest whatsoever.

Thanks for your help!

"Inhibit" can mean to hinder an action or process. For example: "Refrigeration helps to inhibit the growth of bacteria in food." That doesn't mean that refrigeration completely stops the growth of bacteria, but it slows down the process.

Similarly, the odor doesn't STOP the female from developing maternal interest, but it does slow the process (i.e. seven days instead of less than seven days).
_________________
Intern
Intern
avatar
B
Joined: 02 May 2019
Posts: 1
Re: Adult female rats who have never before encountered rat pups  [#permalink]

Show Tags

New post 04 May 2019, 10:51
I cannot understand the question itself...what exactly is the contrast described?
GMAT Club Verbal Expert
User avatar
D
Status: GMAT and GRE tutors
Joined: 13 Aug 2009
Posts: 3162
Location: United States (CO)
GMAT 1: 780 Q51 V46
GMAT 2: 800 Q51 V51
GRE 1: Q170 V170

GRE 2: Q170 V170
Re: Adult female rats who have never before encountered rat pups  [#permalink]

Show Tags

New post 16 May 2019, 00:48
2
DurgeshNandini wrote:
I cannot understand the question itself...what exactly is the contrast described?

The passage contrasts two groups of adult female rats who have never encountered rat pups. Rats in these groups are tested to see how long it takes them to develop maternal instincts toward a pup that is confined with them. Here is a breakdown of each group:

Group 1:
  • Normal female rats confined with normal rat pups.
  • Time to show maternal behaviors: "about seven days."

Group 2:
  • Female rats who have had their sense of smell disabled confined with normal rat pups, OR normal female rats placed with rat pups who have had their scent-producing glands removed. In other words, female rats who cannot smell the rat pups.
  • Time to show maternal behaviors: considerably shorter than seven days.

To answer the question, we need to find a hypothesis that explains why the rats in Group 2 take a shorter amount of time to start showing maternal behaviors than the rats in Group 1.

Hopefully that's enough to get you headed in the right direction?
_________________
GMAT/GRE tutors @ www.gmatninja.com (we're hiring!) | GMAT Club Verbal Expert | Instagram | Blog | Bad at PMs

Beginners' guides to GMAT verbal: RC | CR | SC

YouTube LIVE verbal webinars: all videos by topic

SC articles & resources: How to go from great (760) to incredible (780) on GMAT SC | That "-ing" Word Probably Isn't a Verb | That "-ed" Word Might Not Be a Verb, Either | No-BS Guide to GMAT Idioms | "Being" is not the enemy | WTF is "that" doing in my sentence?

RC, CR, and other articles & resources: All GMAT Ninja articles on GMAT Club | Using LSAT for GMAT CR & RC |7 reasons why your actual GMAT scores don't match your practice test scores | How to get 4 additional "fake" GMAT Prep tests for $29.99 | Time management on verbal

SC & CR Questions of the Day (QOTDs), featuring expert explanations: All QOTDs | Subscribe via email | RSS

Need an expert reply? Hit the request verbal experts' reply button; be specific about your question, and tag @GMATNinja. Priority is always given to official GMAT questions.
Manager
Manager
avatar
S
Joined: 29 Oct 2015
Posts: 237
Adult female rats who have never before encountered rat pups  [#permalink]

Show Tags

New post 22 May 2019, 13:00
1
stevegt wrote:
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.


The contrast is :- 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 shortened if adult female rats don't get the smell of the pups.

Option C and D are out because we are talking about the "Adult female rats who have never before encountered rat pups" in the passage and not "Female rats that have given birth".

"Female rats that have given birth" must have encountered rat pups before. So irrelevant for our discussion.


Option B is also out because it talks about "a female rat that did not bear them." We are talking about the "Adult female rats who have never before encountered rat pups" in the passage.

"a female rat that did not bear them" may have borne some other pups and may have encountered rat pups and hence irrelevant to our discussion.

Option A does not explain the shortening of the period.

Option E explains and gives a reason stating that "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."
If the female dont get the odor of the pup , they develop maternal interest quickly.

Option E is the answer.
Please give me kudo s if you liked my explanation.

generis GMATNinja VeritasKarishma chetan2u
Is my explanation correct ?
Non-Human User
User avatar
Joined: 01 Oct 2013
Posts: 8360
Re: 6-161. Adult female rats who have never before encountered  [#permalink]

Show Tags

New post 15 Jan 2020, 03:47
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).

Want to see all other topics I dig out? Follow me (click follow button on profile). You will receive a summary of all topics I bump in your profile area as well as via email.
GMAT Club Bot
Re: 6-161. Adult female rats who have never before encountered   [#permalink] 15 Jan 2020, 03:47
Display posts from previous: Sort by

Adult female rats who have never before encountered rat pups

  new topic post reply Question banks Downloads My Bookmarks Reviews Important topics  





Powered by phpBB © phpBB Group | Emoji artwork provided by EmojiOne