It is currently 24 Nov 2017, 04:24

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

Events & Promotions

Events & Promotions in June
Open Detailed Calendar

Birds need so much food energy to maintain their body

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

Hide Tags

2 KUDOS received
Senior Manager
Senior Manager
User avatar
Joined: 01 May 2004
Posts: 335

Kudos [?]: 117 [2], given: 0

Location: USA
Birds need so much food energy to maintain their body [#permalink]

Show Tags

New post 07 Jul 2004, 10:57
2
This post received
KUDOS
5
This post was
BOOKMARKED
00:00
A
B
C
D
E

Difficulty:

  55% (hard)

Question Stats:

63% (01:43) correct 37% (01:53) wrong based on 387 sessions

HideShow timer Statistics

Birds need so much food energy to maintain their body temperatures that some of them spend most of their time eating. But a comparison of a bird of a seed-eating species to a bird of a nectar-eating species that has the same overall energy requirement would surely show that the seed-eating bird spends more time eating than does the nectar-eating bird, since a given amount of nectar provides more energy than does the same amount of seeds
The argument relies on which one of the following questionable assumptions
(A) Birds of different species do not generally have the same overall energy requirements as each other
(B) The nectar-eating bird does not sometimes also eat seeds
(C) The time it takes for the nectar-eating bird to eat a given amount of nectar is not longer than the time it takes the seed-eating bird to eat the same amount of seeds
(D) The seed-eating bird does not have a lower body temperature than that of the nectar-eating bird
(E) The overall energy requirements of a given bird do not depend on factors such as the size of the bird, its nest-building habits; and the climate of the region in which it lives
[Reveal] Spoiler: OA

Last edited by Skywalker18 on 19 Apr 2017, 22:09, edited 1 time in total.
OA Added

Kudos [?]: 117 [2], given: 0

1 KUDOS received
GMAT Club Legend
GMAT Club Legend
avatar
Joined: 15 Dec 2003
Posts: 4284

Kudos [?]: 537 [1], given: 0

Re: Birds need so much food energy to maintain their body [#permalink]

Show Tags

New post 07 Jul 2004, 11:44
1
This post received
KUDOS
About 2 min. I'll go with C and explain a bit later
_________________

Best Regards,

Paul

Kudos [?]: 537 [1], given: 0

2 KUDOS received
GMAT Club Legend
GMAT Club Legend
avatar
Joined: 15 Dec 2003
Posts: 4284

Kudos [?]: 537 [2], given: 0

Re: Birds need so much food energy to maintain their body [#permalink]

Show Tags

New post 07 Jul 2004, 11:52
2
This post received
KUDOS
A) This contradicts the premise and is a given, not an assumption
Quote:
a comparison of a bird of a seed-eating species to a bird of a nectar-eating species that has the same overall energy requirement

B) out of scope
C) Although nectar gives more energy, if it takes nectar eating birds more time to eat, how can we say that those nectar-birds spend less time eating?
D) This is given by the premise and is NOT an assumption:
Quote:
a comparison of a bird of a seed-eating species to a bird of a nectar-eating species that has the same overall energy requirement

same overall energy req. = same body temperature
E) out of scope
_________________

Best Regards,

Paul

Kudos [?]: 537 [2], given: 0

Director
Director
User avatar
Joined: 01 Feb 2003
Posts: 838

Kudos [?]: 130 [0], given: 0

Location: Hyderabad
Re: Birds need so much food energy to maintain their body [#permalink]

Show Tags

New post 07 Jul 2004, 12:01
boksana: assuming that your "OK" doesn't necessarily mean that Paul's answer is correct, my answer to this would be D

Paul, as per your logic, even A should be correct. Essentially you are negating what is stated in the question and so does A!

The questions wants us to identify a "questionable assumption" which I think means that it is an explicit assumption made in the argument but is questionable based on "I don't know what!"

1 min 48s (hope it is not down the drain!)

Kudos [?]: 130 [0], given: 0

Senior Manager
Senior Manager
User avatar
Joined: 01 May 2004
Posts: 335

Kudos [?]: 117 [0], given: 0

Location: USA
Re: Birds need so much food energy to maintain their body [#permalink]

Show Tags

New post 07 Jul 2004, 12:22
OA is C

Kudos [?]: 117 [0], given: 0

SVP
SVP
User avatar
Joined: 16 Oct 2003
Posts: 1798

Kudos [?]: 173 [0], given: 0

Re: Birds need so much food energy to maintain their body [#permalink]

Show Tags

New post 07 Jul 2004, 13:10
Well my FA was also D. C was equally near.

Kudos [?]: 173 [0], given: 0

Senior Manager
Senior Manager
User avatar
Joined: 11 May 2004
Posts: 327

Kudos [?]: 25 [0], given: 0

Re: Birds need so much food energy to maintain their body [#permalink]

Show Tags

New post 07 Jul 2004, 23:47
i think D is Out of scope her.

I believe C is the best answer. i agree with paul explanation.

saymee

Kudos [?]: 25 [0], given: 0

Senior Manager
Senior Manager
avatar
Joined: 22 Jun 2004
Posts: 391

Kudos [?]: 9 [0], given: 0

Location: Bangalore, India
Re: Birds need so much food energy to maintain their body [#permalink]

Show Tags

New post 08 Jul 2004, 03:08
Hi All,

In retrospect, the answer C looks like an inference. It does not look like an assumption(unstated premise/evidence).

The argument clearly states that the seed-eating bird spends more time eating than does the nectar-eating bird.

Tha answer C says that The time it takes for the nectar-eating bird to eat a given amount of nectar is not longer than the time it takes the seed-eating bird to eat the same amount of seeds

Thus, C is just a paraphrase of the above sentence in the argument. A paraphrase can be an inference but not an assumption.

Do let me know your views. Probably, I might be 'out of scope'.

boksana wrote:
Birds need so much food energy to maintain their body temperatures that some of them spend most of their time eating. But a comparison of a bird of a seed-eating species to a bird of a nectar-eating species that has the same overall energy requirement would surely show that the seed-eating bird spends more time eating than does the nectar-eating bird, since a given amount of nectar provides more energy than does the same amount of seeds
The argument relies on which one of the following questionable assumptions
(A) Birds of different species do not generally have the same overall energy requirements as each other
(B) The nectar-eating bird does not sometimes also eat seeds
(C) The time it takes for the nectar-eating bird to eat a given amount of nectar is not longer than the time it takes the seed-eating bird to eat the same amount of seeds
(D) The seed-eating bird does not have a lower body temperature than that of the nectar-eating bird
(E) The overall energy requirements of a given bird do not depend on factors such as the size of the bird, its nest-building habits; and the climate of the region in which it lives

_________________

Awaiting response,

Thnx & Rgds,
Chandra

Kudos [?]: 9 [0], given: 0

Expert Post
Jamboree GMAT Instructor
User avatar
Status: GMAT Expert
Affiliations: Jamboree Education Pvt Ltd
Joined: 15 Jul 2015
Posts: 284

Kudos [?]: 322 [0], given: 1

Location: India
Re: Birds need so much food energy to maintain their body [#permalink]

Show Tags

New post 03 Nov 2015, 02:15
Expert's post
1
This post was
BOOKMARKED
Choice C is correct.

The time it takes for the nectar-eating bird to eat a given amount of nectar is not longer than the time it takes the seed-eating bird to eat the same amount of seeds…When we say that Mifune must be spending more time eating seeds than does Rossi eating nectar, accepting the fact that the same amount of nectar provides more energy than do seeds, it is a must that the time taken by Rossi is not more than that by Mifune because if that were the case, it leaves one possibility open that can counter the conclusion…equation 1: if x amount of seeds gives energy= y…equation 2: if x amount of nectar gives energy= 2y…We cannot say with certainty that the one opting for equation 1 is spending more time eating than do the one who opts of equation 2 if we do not know about how much time each takes to consume the same amount of seed or nectar…Now if we say that Mifune is spending more time eating seeds then do Rossi, we must accept that the same amount of nectar is consumed by Rossi in a time which is either same or less than what Mifune takes to consume the same amount.
_________________

Aryama Dutta Saikia
Jamboree Education Pvt. Ltd.

Kudos [?]: 322 [0], given: 1

Senior Manager
Senior Manager
User avatar
G
Joined: 26 Aug 2016
Posts: 468

Kudos [?]: 62 [0], given: 51

Location: India
Schools: Duke '20, Tepper '20
GMAT 1: 690 Q50 V33
GMAT 2: 700 Q50 V33
GPA: 4
WE: Consulting (Consulting)
Premium Member CAT Tests
Re: Birds need so much food energy to maintain their body [#permalink]

Show Tags

New post 28 Apr 2017, 20:04
Narrowed down to C and E .
Here in question stimulus he clearly stated that
Both of same energy requirements are chosen. So i eliminated E.
Only C remains.
Sad part is that I took 2 min 20 seconds. had to go through the stimulus again to eliminate .

Kudos [?]: 62 [0], given: 51

Manager
Manager
avatar
S
Joined: 06 Jun 2013
Posts: 180

Kudos [?]: 17 [0], given: 314

Location: India
Concentration: Finance, Economics
Schools: Tuck
GMAT 1: 640 Q49 V30
GPA: 3.6
WE: Engineering (Computer Software)
Premium Member
Re: Birds need so much food energy to maintain their body [#permalink]

Show Tags

New post 29 Jul 2017, 23:31
C is the correct option.

we are concerned about the eating time, not energy requirement.

once we negate option C, the conclusion falls apart.

Kudos [?]: 17 [0], given: 314

Manager
Manager
avatar
B
Joined: 08 Jun 2017
Posts: 71

Kudos [?]: 1 [0], given: 24

Re: Birds need so much food energy to maintain their body [#permalink]

Show Tags

New post 08 Aug 2017, 08:09
Can somebody explain how negation works for this

Kudos [?]: 1 [0], given: 24

Manager
Manager
avatar
B
Joined: 20 Jun 2016
Posts: 53

Kudos [?]: 12 [0], given: 170

Re: Birds need so much food energy to maintain their body [#permalink]

Show Tags

New post 14 Aug 2017, 21:01
C
on negating the conclusion falls apart.
_________________

Life is a challenge face it.

Kudos [?]: 12 [0], given: 170

Director
Director
User avatar
G
Joined: 28 Mar 2017
Posts: 594

Kudos [?]: 147 [0], given: 133

Re: Birds need so much food energy to maintain their body [#permalink]

Show Tags

New post 16 Aug 2017, 14:03
Birds need so much food energy to maintain their body temperatures that some of them spend most of their time eating. But a comparison of a bird of a seed-eating species to a bird of a nectar-eating species that has the same overall energy requirement would surely show that the seed-eating bird spends more time eating than does the nectar-eating bird, since a given amount of nectar provides more energy than does the same amount of seeds

The argument relies on which one of the following questionable assumptions

(A) Birds of different species do not generally have the same overall energy requirements as each other
Okay, so what? Out of context.

(B) The nectar-eating bird does not sometimes also eat seeds
Okay let it not eat seeds? So how does it impact our argument?

(C) The time it takes for the nectar-eating bird to eat a given amount of nectar is not longer than the time it takes the seed-eating bird to eat the same amount of seeds
Correct. Since the argument says that seed eating birds spend more time than nectar eating birds do, so we need to prove that all other factors are constant.

(D) The seed-eating bird does not have a lower body temperature than that of the nectar-eating bird
Okay? so what. Its a fact set.

(E) The overall energy requirements of a given bird do not depend on factors such as the size of the bird, its nest-building habits; and the climate of the region in which it lives
Okay let it not depend. Its just a factset.
_________________

Kudos if my post helps!

Helpful links:
1. e-GMAT's ALL SC Compilation

Kudos [?]: 147 [0], given: 133

Manager
Manager
avatar
S
Joined: 05 Jul 2017
Posts: 172

Kudos [?]: 45 [0], given: 176

Location: India
Concentration: Entrepreneurship, Technology
GMAT 1: 700 Q49 V36
GPA: 4
Re: Birds need so much food energy to maintain their body [#permalink]

Show Tags

New post 17 Aug 2017, 05:30
Hello Experts,

Can you explain your POE here?
I couldn't comprehend what the prompt is trying to convey and also I am confused with the OA

Thanks in advance

Kudos [?]: 45 [0], given: 176

Re: Birds need so much food energy to maintain their body   [#permalink] 17 Aug 2017, 05:30
Display posts from previous: Sort by

Birds need so much food energy to maintain their body

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


GMAT Club MBA Forum Home| About| Terms and Conditions| GMAT Club Rules| Contact| Sitemap

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

Kindly note that the GMAT® test is a registered trademark of the Graduate Management Admission Council®, and this site has neither been reviewed nor endorsed by GMAC®.