It is currently 13 Dec 2017, 11:02

Decision(s) Day!:

CHAT Rooms | Ross R1 | Kellogg R1 | Darden R1 | Tepper R1


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

Each species of moth has an optimal body temperature for effective fli

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

Hide Tags

2 KUDOS received
Senior Manager
Senior Manager
avatar
Joined: 24 Feb 2007
Posts: 262

Kudos [?]: 349 [2], given: 2

Location: nj
Each species of moth has an optimal body temperature for effective fli [#permalink]

Show Tags

New post 06 May 2009, 13:16
2
This post received
KUDOS
2
This post was
BOOKMARKED
00:00
A
B
C
D
E

Difficulty:

  45% (medium)

Question Stats:

65% (01:16) correct 35% (01:27) wrong based on 453 sessions

HideShow timer Statistics

Which of the following most logically completes the passage?

Each species of moth has an optimal body temperature for effective flight, and when air temperatures fall much below that temperature, the moths typically have to remain inactive on vegetation for extended periods, leaving them highly vulnerable to predators. In general, larger moths can fly faster than smaller ones and hence have a better chance of evading flying predators, but they also have higher optimal body temperatures, which explains why _______.

(A) large moths are generally able to maneuver better in flight than smaller moths

(B) large moths are proportionally much more common in warm climates than in cool climates

(C) small moths are more likely than large moths to be effectively camouflaged while on vegetation

(D) large moths typically have wings that are larger in proportion to their body size than smaller moths do

(E) most predators of moths prey not only on several different species of moth but also on various species of other insects
[Reveal] Spoiler: OA

Last edited by hazelnut on 15 Oct 2017, 06:06, edited 1 time in total.
Edited the question.

Kudos [?]: 349 [2], given: 2

Director
Director
avatar
Joined: 23 May 2008
Posts: 800

Kudos [?]: 86 [0], given: 0

Re: Each species of moth has an optimal body temperature for effective fli [#permalink]

Show Tags

New post 06 May 2009, 14:49
B

large moths dont get eaten as much in warm weather.

Kudos [?]: 86 [0], given: 0

Senior Manager
Senior Manager
avatar
Joined: 16 Apr 2009
Posts: 317

Kudos [?]: 159 [0], given: 14

Re: Each species of moth has an optimal body temperature for effective fli [#permalink]

Show Tags

New post 06 May 2009, 15:08
I would go with B.

here is my explanation ,Though I am not good in explaining so pardon me in case i am not able to provide explanation clearly

Argument starts with describing relationship between optimal body temp and flying and role of air temp. Then the focus shifts to Large moths and the but also ... indicates that the author is giving a different perspective and B fits.

A. large moths are generally able to maneuver better in flight than smaller moths -large moths can fly faster however this does not go with the but also statement

B. large moths are proportionally much more common in warm climates than in cool climates

C. small moths are more likely than large moths to be effectively camouflaged while on vegetation - this doesn't make sense to me as there is no discussion on camouflaged
D. large moths typically have wings that are larger in proportion to their body size than smaller moths do - so what ?
E. most predators of moths prey not only on several different species of moth but also on various species of other insects - this is not at all related
_________________

Always tag your question

Kudos [?]: 159 [0], given: 14

1 KUDOS received
Manager
Manager
avatar
Joined: 30 Mar 2009
Posts: 248

Kudos [?]: 207 [1], given: 1

Re: Each species of moth has an optimal body temperature for effective fli [#permalink]

Show Tags

New post 06 May 2009, 19:16
1
This post received
KUDOS
Each species of moth has an optimal body temperature for effective flight, and when air temperatures fall much below that temperature, the moths typically have to remain inactive on vegetation for extended periods, leaving them highly vulnerable to predators. In general, larger moths can fly faster than smaller ones and hence have a better chance of evading flying predators, but they also have higher optimal body temperatures, which explains why ______.

A. large moths are generally able to maneuver better in flight than smaller moths --> no info
B. large moths are proportionally much more common in warm climates than in cool climates --> best. Because of less vulnerable in warm climates than in cool climates, they are less likely to be eaten and thus proportionally more common in warm climates than in cool cliamtes
C. small moths are more likely than large moths to be effectively camouflaged while on vegetation --> no info about camouflage
D. large moths typically have wings that are larger in proportion to their body size than smaller moths do --> no info about size
E. most predators of moths prey not only on several different species of moth but also on various species of other insects --> irrelevant

Kudos [?]: 207 [1], given: 1

SVP
SVP
avatar
Joined: 04 May 2006
Posts: 1878

Kudos [?]: 1470 [0], given: 1

Schools: CBS, Kellogg
Premium Member
Re: Each species of moth has an optimal body temperature for effective fli [#permalink]

Show Tags

New post 06 May 2009, 22:14
neeshpal wrote:
Each species of moth has an optimal body temperature for effective flight, and when air temperatures fall much below that temperature, the moths typically have to remain inactive on vegetation for extended periods, leaving them highly vulnerable to predators. In general, larger moths can fly faster than smaller ones and hence have a better chance of evading flying predators, but they also have higher optimal body temperatures, which explains why ______.

A. large moths are generally able to maneuver better in flight than smaller moths
B. large moths are proportionally much more common in warm climates than in cool climates
C. small moths are more likely than large moths to be effectively camouflaged while on vegetation
D. large moths typically have wings that are larger in proportion to their body size than smaller moths do
E. most predators of moths prey not only on several different species of moth but also on various species of other insects

please explain...


C is the best

The argument focuses on the pros and cons of the smaller and the larger moth. The last sentence points out the advantage of the larger moth, and it uses "but" to give the disadvantage of the larger too. Gmat does not say directly the disadvantage, instead says the pros of the smaller one.

B should not be OA, b/c "but" is used to negate all the thing said before
_________________

GMAT Club Premium Membership - big benefits and savings

Kudos [?]: 1470 [0], given: 1

Intern
Intern
avatar
Joined: 02 Mar 2009
Posts: 45

Kudos [?]: 3 [0], given: 0

Location: Austin
Re: Each species of moth has an optimal body temperature for effective fli [#permalink]

Show Tags

New post 07 May 2009, 04:49
Agree with B.
No info is given about camouflage.So, that answer choice is out-of-context.

Kudos [?]: 3 [0], given: 0

Manager
Manager
avatar
Joined: 29 Jul 2009
Posts: 214

Kudos [?]: 98 [0], given: 6

Re: Each species of moth has an optimal body temperature for effective fli [#permalink]

Show Tags

New post 29 Oct 2009, 14:16
IMO B.

The other answers make assumptions that are out of the scope of the question.

Kudos [?]: 98 [0], given: 6

Manager
Manager
avatar
Joined: 17 Aug 2009
Posts: 227

Kudos [?]: 301 [0], given: 25

Re: Each species of moth has an optimal body temperature for effective fli [#permalink]

Show Tags

New post 17 Dec 2009, 05:57
Each species of moth has an optimal body temperature for effective flight, and when air temperatures fall much below that temperature, the moths typically have to remain inactive on vegetation for extended periods, leaving them highly vulnerable to predators. In general, larger moths can fly faster than smaller ones and hence have a better chance of evading flying predators, but they also have higher optimal body temperatures, which explains why ______.

A. large moths are generally able to maneuver better in flight than smaller moths-------INCORRECT stimulus doesnt mention any relation between maneuvering and moths
B. large moths are proportionally much more common in warm climates than in cool climatesCORRECT. If larger moths have high optimal body temperatures they would be found more in warmer climates than in cooler climates as in cooler climates the differential temperature between their high optimal body temperature will be larger and hence they would have to remain inactive
C. small moths are more likely than large moths to be effectively camouflaged while on vegetation INCORRECT. This is a trap. Both would need camouflaging/or any other mechanism to escape predators while on vegetation irrespective of their flying abilities
D. large moths typically have wings that are larger in proportion to their body size than smaller moths doINCORRECT. The relationship with larger wings and body temperature seems out of scope as it doesnt make any sense here
E. most predators of moths prey not only on several different species of moth but also on various species of other insectINCORRECT. Out of scope


Hope this resolves the confusion between B and C

Kudos [?]: 301 [0], given: 25

Manager
Manager
avatar
Joined: 30 Jun 2004
Posts: 176

Kudos [?]: 29 [0], given: 5

Location: Singapore
GMAT ToolKit User
Re: Each species of moth has an optimal body temperature for effective fli [#permalink]

Show Tags

New post 31 Dec 2009, 01:36
Agree with B.

Bigger moths have higher optimal temperature which is consistent with details in B.

Kudos [?]: 29 [0], given: 5

Manager
Manager
avatar
Joined: 02 Nov 2009
Posts: 69

Kudos [?]: 13 [0], given: 1

Schools: INSEAD- WL, IE - Apr 2011
Re: Each species of moth has an optimal body temperature for effective fli [#permalink]

Show Tags

New post 31 Dec 2009, 04:27
I thought the answer to be C. However, I see that most of the guys here have reasoned for B, though I am not 100% convinced.

Plz share the OA along with OE, if possible.

Kudos [?]: 13 [0], given: 1

Manager
Manager
User avatar
Status: Its Wow or Never
Joined: 11 Dec 2009
Posts: 204

Kudos [?]: 314 [0], given: 7

Location: India
Concentration: Technology, Strategy
GMAT 1: 670 Q47 V35
GMAT 2: 710 Q48 V40
WE: Information Technology (Computer Software)
Re: Each species of moth has an optimal body temperature for effective fli [#permalink]

Show Tags

New post 02 Jan 2010, 12:21
neeshpal wrote:
Each species of moth has an optimal body temperature for effective flight, and when air temperatures fall much below that temperature, the moths typically have to remain inactive on vegetation for extended periods, leaving them highly vulnerable to predators. In general, larger moths can fly faster than smaller ones and hence have a better chance of evading flying predators, but they also have higher optimal body temperatures, which explains why ______.

A. large moths are generally able to maneuver better in flight than smaller moths
B. large moths are proportionally much more common in warm climates than in cool climates
C. small moths are more likely than large moths to be effectively camouflaged while on vegetation
D. large moths typically have wings that are larger in proportion to their body size than smaller moths do
E. most predators of moths prey not only on several different species of moth but also on various species of other insects

please explain...


i would go with B after POE..
A.Too extreme a sentence for the information provided int he text about the flight of the moths.
C.Camouflage not discussed.
D.Wing Size not discussed.
E.Other insects do not discussed.
_________________

---------------------------------------------------------------------------------------
If you think you can,you can
If you think you can't,you are right.

Kudos [?]: 314 [0], given: 7

Intern
Intern
avatar
Joined: 31 May 2010
Posts: 32

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

Schools: ESADE, IE
Re: Each species of moth has an optimal body temperature for effective fli [#permalink]

Show Tags

New post 29 Aug 2011, 18:27
Would go with B also.

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

Retired Moderator
User avatar
Status: 2000 posts! I don't know whether I should feel great or sad about it! LOL
Joined: 04 Oct 2009
Posts: 1626

Kudos [?]: 1138 [0], given: 109

Location: Peru
Schools: Harvard, Stanford, Wharton, MIT & HKS (Government)
WE 1: Economic research
WE 2: Banking
WE 3: Government: Foreign Trade and SMEs
Re: Each species of moth has an optimal body temperature for effective fli [#permalink]

Show Tags

New post 29 Aug 2011, 22:54
+1 B

Large moths need warmer climates to fly efectively. That help them to avoid predators also.
_________________

"Life’s battle doesn’t always go to stronger or faster men; but sooner or later the man who wins is the one who thinks he can."

My Integrated Reasoning Logbook / Diary: http://gmatclub.com/forum/my-ir-logbook-diary-133264.html

GMAT Club Premium Membership - big benefits and savings

Kudos [?]: 1138 [0], given: 109

Math Forum Moderator
avatar
Joined: 20 Dec 2010
Posts: 1949

Kudos [?]: 2137 [0], given: 376

Re: Each species of moth has an optimal body temperature for effective fli [#permalink]

Show Tags

New post 29 Aug 2011, 23:59
kaliaabhishek wrote:
I think C..mainly coz 'but' is used...
plz provide the OA


"camouflaging" is not at all mentioned in the passage. I don't know where is this question from. But, "B" seems more plausible. Smaller moth-lower body temperature-relatively less warm climate is ideal.
Larger moth-higher body temperature-relatively higher warm climate is ideal, or they won't function as effectively.

You are right in noticing "but". "but" should show a contrast that rules out "A" as an answer. Also, "B" shows a reason why the higher body temperature is suited better for warmer climate, and we definitely need a reason "which explains why".

Ans: "B"
******************************

If anyone knows the source and OA for this question, please PM or reply to the post. thanks
_________________

~fluke

GMAT Club Premium Membership - big benefits and savings

Kudos [?]: 2137 [0], given: 376

Board of Directors
User avatar
G
Joined: 01 Sep 2010
Posts: 3422

Kudos [?]: 9491 [0], given: 1203

Re: Each species of moth has an optimal body temperature for effective fli [#permalink]

Show Tags

New post 30 Aug 2011, 03:28

Kudos [?]: 9491 [0], given: 1203

Manager
Manager
avatar
Joined: 15 Mar 2012
Posts: 69

Kudos [?]: 8 [0], given: 20

Re: Each species of moth has an optimal body temperature for effective fli [#permalink]

Show Tags

New post 01 Jun 2014, 21:17
A is the right answe.
See the link for details:
http://www.beatthegmat.com/species-of-moth-t52573.html
carcass wrote:
B is straigth........

Kudos [?]: 8 [0], given: 20

Senior Manager
Senior Manager
User avatar
Joined: 10 Mar 2013
Posts: 266

Kudos [?]: 128 [0], given: 2405

GMAT 1: 620 Q44 V31
GMAT 2: 690 Q47 V37
GMAT 3: 610 Q47 V28
GMAT 4: 700 Q50 V34
GMAT 5: 700 Q49 V36
GMAT 6: 690 Q48 V35
GMAT 7: 750 Q49 V42
GMAT 8: 730 Q50 V39
Re: Each species of moth has an optimal body temperature for effective fli [#permalink]

Show Tags

New post 07 Aug 2014, 19:31
As an FYI, this is a GMATPREP question.

Kudos [?]: 128 [0], given: 2405

1 KUDOS received
Intern
Intern
avatar
Joined: 05 Aug 2014
Posts: 31

Kudos [?]: 82 [1], given: 24

Reviews Badge
Re: Each species of moth has an optimal body temperature for effective fli [#permalink]

Show Tags

New post 13 Jun 2015, 01:53
1
This post received
KUDOS
3
This post was
BOOKMARKED
Which of the following most logically completes the passage?
Each species of moth has an optimal body temperature for effective flight, and when air temperatures fall much below that temperature, the moths typically have to remain inactive on vegetation for extended periods, leaving them highly vulnerable to predators. In general, larger moths can fly faster than smaller ones and hence have better chance of evading flying predators, but they also have higher optimal body temperatures, which explains why
-----------------
A. Large moths are generally able to maneuver better in flight than smaller moths
B. Large moths are proportionally much more common in warm climates than in cool climates
C. Small moths are more likely than large moths to be effectively camouflaged while on vegetation
D. Large moths typically have wings that are larger in proportion to their body size than smaller moths do
E. Most predators of moths prey not only on several different species of moth but also on various species of other insects

Can any one explain how to go about this question?

Kudos [?]: 82 [1], given: 24

1 KUDOS received
Senior Manager
Senior Manager
avatar
Joined: 02 Dec 2014
Posts: 370

Kudos [?]: 94 [1], given: 349

Location: Russian Federation
Concentration: General Management, Economics
GMAT 1: 640 Q44 V33
WE: Sales (Telecommunications)
Re: Each species of moth has an optimal body temperature for effective fli [#permalink]

Show Tags

New post 18 Jun 2015, 13:24
1
This post received
KUDOS
naeln wrote:
Which of the following most logically completes the passage?
Each species of moth has an optimal body temperature for effective flight, and when air temperatures fall much below that temperature, the moths typically have to remain inactive on vegetation for extended periods, leaving them highly vulnerable to predators. In general, larger moths can fly faster than smaller ones and hence have better chance of evading flying predators, but they also have higher optimal body temperatures, which explains why
-----------------
A. Large moths are generally able to maneuver better in flight than smaller moths.
B. Large moths are proportionally much more common in warm climates than in cool climates
C. Small moths are more likely than large moths to be effectively camouflaged while on vegetation
D. Large moths typically have wings that are larger in proportion to their body size than smaller moths do
E. Most predators of moths prey not only on several different species of moth but also on various species of other insects

Can any one explain how to go about this question?

Hi naeln!
You have to find an answer that is compatible with an information given. Look at the answers.
A. Do we know this? No this may be true or not true
B. This is correct answer. If large moths have higher body temperature then it is likely that in warm climate live more large moths than live in cold climate. Just think in terms of their ability to escape from predators. In warm climate moths are better able to escape since here temperature is usually higher than in cold climate. Hence moths are better able to avoid flying predators
C. We don't know about camouflage abilities.
D.Body temperature doesn't explain why large moths have wings that are larger in proportion
E.We don't know how body temperature relates to number of species that moths prey on. Even if large moths can fly faster how is it related with number of insects?
Hope it is clear
_________________

"Are you gangsters?" - "No we are Russians!"

Kudos [?]: 94 [1], given: 349

Current Student
User avatar
Joined: 03 Feb 2013
Posts: 943

Kudos [?]: 1089 [0], given: 548

Location: India
Concentration: Operations, Strategy
GMAT 1: 760 Q49 V44
GPA: 3.88
WE: Engineering (Computer Software)
Reviews Badge
Re: Each species of moth has an optimal body temperature for effective fli [#permalink]

Show Tags

New post 20 Jun 2015, 09:03
Each species of moth has an optimal body temperature for effective flight, and when air temperatures fall much below that temperature, the moths typically have to remain inactive on vegetation for extended periods, leaving them highly vulnerable to predators. In general, larger moths can fly faster than smaller ones and hence have a better chance of evading flying predators, but they also have higher optimal body temperatures, which explains why ______.

premise 1 : optimal body temperature for effective flight
premise 2 : larger moth more optimal temperature for flight.
The below option which explain the above premise:


A. large moths are generally able to maneuver better in flight than smaller moths
We are not concerned about maneuvering aspect of the flight. we are just bothered about the relation between flight of larger moth and optimal temperature

B. large moths are proportionally much more common in warm climates than in cool climates
This option talks about why more larger moth are present in warm climates compared to cool climates as larger moth has higher optimal temperatures -> Correct

C. small moths are more likely than large moths to be effectively camouflaged while on vegetation
We are not concerned about the "camouflage" aspect of the moth.

D. large moths typically have wings that are larger in proportion to their body size than smaller moths do
We are not concerned about the larger wings of large moths.

E. most predators of moths prey not only on several different species of moth but also on various species of other insects
We are not concerned about the prey aspect of the moths
_________________

Thanks,
Kinjal
My Debrief : http://gmatclub.com/forum/hardwork-never-gets-unrewarded-for-ever-189267.html#p1449379
My Application Experience : http://gmatclub.com/forum/hardwork-never-gets-unrewarded-for-ever-189267-40.html#p1516961
Linkedin : https://www.linkedin.com/in/kinjal-das/

Please click on Kudos, if you think the post is helpful

Kudos [?]: 1089 [0], given: 548

Re: Each species of moth has an optimal body temperature for effective fli   [#permalink] 20 Jun 2015, 09:03

Go to page    1   2    Next  [ 26 posts ] 

Display posts from previous: Sort by

Each species of moth has an optimal body temperature for effective fli

  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®.