GMAT Question of the Day - Daily to your Mailbox; hard ones only

It is currently 21 Jan 2019, 16:24

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 in January
PrevNext
SuMoTuWeThFrSa
303112345
6789101112
13141516171819
20212223242526
272829303112
Open Detailed Calendar
  • GMAT Club Tests are Free & Open for Martin Luther King Jr.'s Birthday!

     January 21, 2019

     January 21, 2019

     10:00 PM PST

     11:00 PM PST

    Mark your calendars - All GMAT Club Tests are free and open January 21st for celebrate Martin Luther King Jr.'s Birthday.
  • The winners of the GMAT game show

     January 22, 2019

     January 22, 2019

     10:00 PM PST

     11:00 PM PST

    In case you didn’t notice, we recently held the 1st ever GMAT game show and it was awesome! See who won a full GMAT course, and register to the next one.

The song of the yellow warbler signals to other yellow warblers that a

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

Hide Tags

 
Current Student
avatar
G
Joined: 30 Apr 2016
Posts: 72
Location: India
GMAT 1: 720 Q50 V38
GPA: 4
Premium Member Reviews Badge
The song of the yellow warbler signals to other yellow warblers that a  [#permalink]

Show Tags

New post Updated on: 16 Jan 2019, 20:40
3
00:00
A
B
C
D
E

Difficulty:

  25% (medium)

Question Stats:

75% (01:48) correct 25% (01:35) wrong based on 153 sessions

HideShow timer Statistics

The song of the yellow warbler signals to other yellow warblers that a particular area has been appropriated by the singer as its own feeding territory. Although the singing deters other yellow warblers from taking over the feeding territory of the singer, other yellow warblers may range for food within a portion of the singer’s territory. However, a warbler sings a special song when it molts (sheds its feathers). Other yellow warblers will not enter the smaller core territory of a yellow warbler singing its molting song. Therefore yellow warblers, which can only fly short distances during molting, have no competition for the food supply within the range of their restricted flying.

The argument makes which one of the following assumptions?


(A) The core areas contain just enough food to sustain one yellow warbler while it molts.

(B) Warblers are the only molting birds that lay claim to core areas of feeding territories by singing.

(C) There are no birds other than yellow warblers that compete with yellow warblers for food.

(D) Warblers often share their feeding areas with other kinds of birds, which often do not eat the same insects or seeds as warblers do.

(E) The core areas of each feeding territory are the same size for each molting warbler.

Originally posted by aurobindomahanty on 24 May 2017, 22:17.
Last edited by Bunuel on 16 Jan 2019, 20:40, edited 1 time in total.
Renamed the topic and edited the question.
Intern
Intern
avatar
B
Joined: 21 Nov 2014
Posts: 45
Location: India
Schools: ISB '18
GMAT 1: 710 Q49 V38
GPA: 3.7
Premium Member
Re: The song of the yellow warbler signals to other yellow warblers that a  [#permalink]

Show Tags

New post 24 May 2017, 22:26
C. Yellow warblers don't intrude a fellow warbler's area when it is molting but we can't be sure that other birds also follow this no intrusion policy. Hence the conclusion that the molting bird will not face any food shortage in its territory is dependent on the behaviour of other birds
Current Student
avatar
G
Joined: 30 Apr 2016
Posts: 72
Location: India
GMAT 1: 720 Q50 V38
GPA: 4
Premium Member Reviews Badge
Re: The song of the yellow warbler signals to other yellow warblers that a  [#permalink]

Show Tags

New post 24 May 2017, 22:34
deep14 wrote:
C. Yellow warblers don't intrude a fellow warbler's area when it is molting but we can't be sure that other birds also follow this no intrusion policy. Hence the conclusion that the molting bird will not face any food shortage in its territory is dependent on the behaviour of other birds


what is the problem with option D?
Intern
Intern
avatar
B
Joined: 21 Nov 2014
Posts: 45
Location: India
Schools: ISB '18
GMAT 1: 710 Q49 V38
GPA: 3.7
Premium Member
Re: The song of the yellow warbler signals to other yellow warblers that a  [#permalink]

Show Tags

New post 24 May 2017, 22:44
2
aurobindomahanty wrote:
deep14 wrote:
C. Yellow warblers don't intrude a fellow warbler's area when it is molting but we can't be sure that other birds also follow this no intrusion policy. Hence the conclusion that the molting bird will not face any food shortage in its territory is dependent on the behaviour of other birds


what is the problem with option D?


The problem with D is that it says although warblers share territory with other birds, those other birds often do not eat the same insects or seeds as warblers do. That word often is weakening the assumption as often doesn't rule the instance in which other birds prey upon warbler's food. D would have been a valid choice if you drop often
Intern
Intern
User avatar
B
Joined: 14 Jan 2018
Posts: 33
Location: India
Concentration: General Management, Entrepreneurship
GMAT 1: 720 Q50 V41
GPA: 3.7
WE: Engineering (Manufacturing)
Re: The song of the yellow warbler signals to other yellow warblers that a  [#permalink]

Show Tags

New post 16 Jan 2019, 10:37
Conclusion : Therefore yellow warblers, which can only fly short distances during molting, have no competition for the food supply within the range of their restricted flying

(A) The core areas contain just enough food to sustain one yellow warbler while it molts.
Can be a assumption . lets find other option

(B) Warblers are the only molting birds that lay claim to core areas of feeding territories by singing.
Not an assumption.

(C) There are no birds other than yellow warblers that compete with yellow warblers for food.
Definetly a assumption .

(D) Warblers often share their feeding areas with other kinds of birds, which often do not eat the same insects or seeds as warblers do.
Weaken conclusion
(E) The core areas of each feeding territory are the same size for each molting warbler.
Not applicable

So between A and C we use negation theorem .

SO C is more applicable .

Answer C
GMAT Club Bot
Re: The song of the yellow warbler signals to other yellow warblers that a &nbs [#permalink] 16 Jan 2019, 10:37
Display posts from previous: Sort by

The song of the yellow warbler signals to other yellow warblers that a

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


Copyright

GMAT Club MBA Forum Home| About| Terms and Conditions and Privacy Policy| 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®.