Find all School-related info fast with the new School-Specific MBA Forum

It is currently 23 Oct 2014, 01:38

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.

Events & Promotions

Events & Promotions in June
Open Detailed Calendar

By dating fossils of pollen and beetles, which returned

  Question banks Downloads My Bookmarks Reviews Important topics  
Author Message
TAGS:
1 KUDOS received
SVP
SVP
avatar
Joined: 16 Jul 2009
Posts: 1634
Schools: CBS
WE 1: 4 years (Consulting)
Followers: 31

Kudos [?]: 279 [1] , given: 2

By dating fossils of pollen and beetles, which returned [#permalink] New post 18 May 2010, 13:28
1
This post received
KUDOS
00:00
A
B
C
D
E

Difficulty:

(N/A)

Question Stats:

67% (04:38) correct 33% (02:41) wrong based on 14 sessions
By dating fossils of pollen and beetles, which returned after an Ice Age glacier left an area, it is possible to establish an approximate date when a warmer climate developed. In one glacial area, it appears from the insect record that a warm climate developed immediately after the melting of the glacier. From the pollen record, however, it appears that the warm climate did not develop until long after the glacier disappeared.
Each one of the following, if true, helps to explain the apparent discrepancy EXCEPT:

(A) Cold-weather beetle fossils can be mistaken for those of beetles that live in warm climates.
(B) Warm-weather plants cannot establish themselves as quickly as can beetles in a new environment.
(C) Beetles can survive in a relatively barren postglacial area by scavenging.
(D) Since planes spread unevenly in a new climate, researchers can mistake gaps in the pollen record as evidence of no new overall growth.
(E) Beetles are among the oldest insect species and are much older then many warm-weather plants.

I cant choose among B, C and E. For me, they have nothing to do with the passage so they would be correct.
_________________

The sky is the limit
800 is the limit


Get the best GMAT Prep Resources with GMAT Club Premium Membership

Senior Manager
Senior Manager
avatar
Joined: 24 Jul 2009
Posts: 298
Followers: 2

Kudos [?]: 73 [0], given: 0

Re: pollen and beetles [#permalink] New post 18 May 2010, 13:39
IMHO C
SVP
SVP
avatar
Joined: 16 Jul 2009
Posts: 1634
Schools: CBS
WE 1: 4 years (Consulting)
Followers: 31

Kudos [?]: 279 [0], given: 2

Re: pollen and beetles [#permalink] New post 18 May 2010, 13:46
nverma wrote:
IMHO C


Please explain.
_________________

The sky is the limit
800 is the limit


Get the best GMAT Prep Resources with GMAT Club Premium Membership

Intern
Intern
avatar
Joined: 17 Sep 2009
Posts: 3
Followers: 0

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

Re: pollen and beetles [#permalink] New post 18 May 2010, 20:32
IMO E...This is the only answer that has nothing to do with explaning the discrepancy.
Senior Manager
Senior Manager
avatar
Joined: 24 Jul 2009
Posts: 298
Followers: 2

Kudos [?]: 73 [0], given: 0

Re: pollen and beetles [#permalink] New post 18 May 2010, 23:25
noboru wrote:
nverma wrote:
IMHO C


Please explain.


By dating fossils of pollen and beetles, which returned after an Ice Age glacier left an area, it is possible to establish an approximate date when a warmer climate developed. In one glacial area, it appears from the insect record that a warm climate developed immediately after the melting of the glacier. From the pollen record, however, it appears that the warm climate did not develop until long after the glacier disappeared.
Each one of the following, if true, helps to explain the apparent discrepancy EXCEPT:

(A) Cold-weather beetle fossils can be mistaken for those of beetles that live in warm climates. >>> If the beetles are actually "warm weather" Beatles..weather was warm >> also the pollen shows warm weather.
(B) Warm-weather plants cannot establish themselves as quickly as can beetles in a new environment. >>> So even the weather immediately became warm..this can't be shown with the help of Pollen fossils
(C) Beetles can survive in a relatively barren post glacial area by scavenging.>>> Doesn't say anything about weather patterns. >>> Correct
(D) Since planes spread unevenly in a new climate, researchers can mistake gaps in the pollen record as evidence of no new overall growth. >>> If the pollen pattern is not complete...It weaken the conclusion derived using pollen fossils..
(E) Beetles are among the oldest insect species and are much older then many warm-weather plants.>>> If Beatles were already present and the warm weather plants (as a species) came later on...then it's difficult to conclude the pattern on the basis of Pollens..
SVP
SVP
avatar
Joined: 16 Jul 2009
Posts: 1634
Schools: CBS
WE 1: 4 years (Consulting)
Followers: 31

Kudos [?]: 279 [0], given: 2

Re: pollen and beetles [#permalink] New post 18 May 2010, 23:42
Socker121314 wrote:
IMO E...This is the only answer that has nothing to do with explaning the discrepancy.


and what do B and C have to do with the whole thing?
_________________

The sky is the limit
800 is the limit


Get the best GMAT Prep Resources with GMAT Club Premium Membership

SVP
SVP
avatar
Joined: 16 Jul 2009
Posts: 1634
Schools: CBS
WE 1: 4 years (Consulting)
Followers: 31

Kudos [?]: 279 [0], given: 2

Re: pollen and beetles [#permalink] New post 18 May 2010, 23:45
nverma wrote:
noboru wrote:
nverma wrote:
IMHO C


Please explain.


By dating fossils of pollen and beetles, which returned after an Ice Age glacier left an area, it is possible to establish an approximate date when a warmer climate developed. In one glacial area, it appears from the insect record that a warm climate developed immediately after the melting of the glacier. From the pollen record, however, it appears that the warm climate did not develop until long after the glacier disappeared.
Each one of the following, if true, helps to explain the apparent discrepancy EXCEPT:

(A) Cold-weather beetle fossils can be mistaken for those of beetles that live in warm climates. >>> If the beetles are actually "warm weather" Beatles..weather was warm >> also the pollen shows warm weather.
(B) Warm-weather plants cannot establish themselves as quickly as can beetles in a new environment. >>> So even the weather immediately became warm..this can't be shown with the help of Pollen fossils
(C) Beetles can survive in a relatively barren post glacial area by scavenging.>>> Doesn't say anything about weather patterns. >>> Correct
(D) Since planes spread unevenly in a new climate, researchers can mistake gaps in the pollen record as evidence of no new overall growth. >>> If the pollen pattern is not complete...It weaken the conclusion derived using pollen fossils..
(E) Beetles are among the oldest insect species and are much older then many warm-weather plants.>>> If Beatles were already present and the warm weather plants (as a species) came later on...then it's difficult to conclude the pattern on the basis of Pollens..


Sorry, C is not the OA.
Any more takers?
_________________

The sky is the limit
800 is the limit


Get the best GMAT Prep Resources with GMAT Club Premium Membership

Senior Manager
Senior Manager
avatar
Joined: 07 Jan 2010
Posts: 250
Followers: 1

Kudos [?]: 7 [0], given: 16

Re: pollen and beetles [#permalink] New post 19 May 2010, 02:21
I was completely confused with the question and then I noticed that it is an EXCEPT question ...what a :(

Anyway...I think D should be the answer because all other answer somehow try to explain the existence or plant/beetle at different times ....

A. The beetle fossils were actually from cold weather species. So the wrong sample would result in a paradox.
B. It states that beetles existed in colder weather when plants could not. So obviously the samples are from different time.
C. Beetles could exist the postglacial period by scavenging, but plants did not. Again samples from two different period.
D. YES. The pollen data may not be complete. If it were complete it would favor a different conclusion (evidence of no new overall growth), which is not mentioned anywhere in the text.
E. Since beetles are the oldest species, they could, for example, belong to another glacial period. And that would result in different samples.
Senior Manager
Senior Manager
avatar
Joined: 07 Jan 2010
Posts: 250
Followers: 1

Kudos [?]: 7 [0], given: 16

Re: pollen and beetles [#permalink] New post 19 May 2010, 02:27
OA is E (Source: 1000 CR -- Test 6 Q12)

I thought E is a sure explanation for the paradox.
Manager
Manager
avatar
Joined: 16 Feb 2010
Posts: 175
Followers: 2

Kudos [?]: 14 [0], given: 10

Re: pollen and beetles [#permalink] New post 19 May 2010, 02:47
it has o be E
Senior Manager
Senior Manager
avatar
Joined: 07 Jan 2010
Posts: 250
Followers: 1

Kudos [?]: 7 [0], given: 16

Re: pollen and beetles [#permalink] New post 19 May 2010, 04:25
It will be nice to have some explanation as well.
dixitraghav wrote:
it has o be E
Senior Manager
Senior Manager
avatar
Joined: 24 Jul 2009
Posts: 298
Followers: 2

Kudos [?]: 73 [0], given: 0

Re: pollen and beetles [#permalink] New post 19 May 2010, 04:28
Indien wrote:
I was completely confused with the question and then I noticed that it is an EXCEPT question ...what a :(

Anyway...I think D should be the answer because all other answer somehow try to explain the existence or plant/beetle at different times ....

A. The beetle fossils were actually from cold weather species. So the wrong sample would result in a paradox.
B. It states that beetles existed in colder weather when plants could not. So obviously the samples are from different time.
C. Beetles could exist the postglacial period by scavenging, but plants did not. Again samples from two different period.
D. YES. The pollen data may not be complete. If it were complete it would favor a different conclusion (evidence of no new overall growth), which is not mentioned anywhere in the text.
E. Since beetles are the oldest species, they could, for example, belong to another glacial period. And that would result in different samples.



Not mentioned in the argument. I think we need a very good reason to reject C.
1 KUDOS received
Manager
Manager
avatar
Joined: 16 Mar 2010
Posts: 120
Location: Halifax, Canada
Schools: Dalhousie School of Business (Corporate Residency MBA)
Followers: 5

Kudos [?]: 35 [1] , given: 8

Re: pollen and beetles [#permalink] New post 19 May 2010, 05:59
1
This post received
KUDOS
Indien wrote:
It will be nice to have some explanation as well.

After initially thinking C, then reading down until it was revealed to be E, here's how I break it down:

(A) Cold-weather beetle fossils can be mistaken for those of beetles that live in warm climates. This is pretty simple. Messing up which fossils you recovered would certainly explain the discrepancy.

(B) Warm-weather plants cannot establish themselves as quickly as can beetles in a new environment. If this were the case, then the glacier melts, beetles move in, but the pollen doesn't come around until some time later since the plants suck at getting establishing, creating the illusion that the warm period started later if you go by pollen fossils alone.

(C) Beetles can survive in a relatively barren postglacial area by scavenging. At first this seemed trivial, but you have to keep in mind that WE DON'T KNOW WHEN THE WARM PERIOD ACTUALLY BEGAN. In this scenario, the glacier melts and we get a cold period for X number of years, POPULATED with beetles. Don't be thrown off by the supposed existence of cold-weather and warm-weather beetles from a), that has nothing to do with this answer. So when the warm period comes, so do the plants. We get fossils from tough beetles in the cold period (which to scientists, seems to imply a warm period) and then we get pollen fossils sometime later, which also implies that that's when the warm period started.

(D) Since planes spread unevenly in a new climate, researchers can mistake gaps in the pollen record as evidence of no new overall growth. This straight up says that researchers can screw up, pretty easy to eliminate.

(E) Beetles are among the oldest insect species and are much older then many warm-weather plants. This is the answer because it has nothing to do with the question. It's just a fact out of an encyclopedia. All it might imply is that fossil dating using beetles and pollen might not work past a certain prehistoric date... but does nothing to explain the discrepancy.
_________________

I'm a current Corporate Residency MBA student at Dalhousie University (Nova Scotia, Canada).
This account is to help spread the word about this unique program, as well as to help provide a student perspective for MBA applications and GMAT experiences.

Every week I publish a blog about life in the CRMBA by interviewing current students. Find us on Twitter and Facebook, or post any questions/comments/concerns in this thread here on gmatclub.com

Highlights of the program include:

Specifically designed by Corporations/Employers, No work experience necessary, 8-month paid corporate residency, Grades/GMAT score not the main focus for admittance

Re: pollen and beetles   [#permalink] 19 May 2010, 05:59
    Similar topics Author Replies Last post
Similar
Topics:
1 Radiocarbon dating of fossils taken from caves on islands mohnish104 2 03 Dec 2013, 19:48
By dating fossils of pollen and beetles, which returned aimkp 2 17 Dec 2010, 06:08
By dating fossils of pollen and beetles, which returned WinWinMBA 5 17 May 2005, 15:07
By dating fossils of pollen and beetles, which returned harshi 5 11 Apr 2005, 09:51
By examining fossilized beetles a research team has produced chunjuwu 6 29 Mar 2005, 04:37
Display posts from previous: Sort by

By dating fossils of pollen and beetles, which returned

  Question banks Downloads My Bookmarks Reviews Important topics  


cron

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

Powered by phpBB © phpBB Group and phpBB SEO

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®.