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# Based on the growth rates of large modern reptiles such as

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Manager
Joined: 20 Mar 2007
Posts: 72
Based on the growth rates of large modern reptiles such as  [#permalink]

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12 Jul 2007, 15:45
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56% (00:40) correct 44% (00:34) wrong based on 259 sessions

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Based on the growth rates of large modern reptiles such as the Galapagos tortoise and examinations of fossils of juvenile dinosaurs, scientists estimate that the largest dinosaurs probably lived to be between 100 and 200 years old.

(A) Based on the growth rates of large modern reptiles such as

(B) On the basis of growth rates of large modern reptiles such as

(C) Based on the growth rates of large modern reptiles like

(D) On the basis of growth rates of large modern reptiles, like those of

(E) Based on such growth rates as those of large modern reptiles like
Manager
Joined: 24 Feb 2007
Posts: 153
Location: nj
Re: 1000 SC -- growth rates  [#permalink]

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23 Mar 2009, 15:32
1
should be B.

because of the use of "such as" and because of parallelism.

On the basis of growth rates of large modern reptiles such as the Galapagos tortoise and (on the basis of ) examinations of fossils of juvenile dinosaurs, scientists estimate that the largest dinosaurs probably lived to be between 100 and 200 years old.
Senior Manager
Joined: 01 Aug 2008
Posts: 480
Re: 1000 SC -- growth rates  [#permalink]

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23 Mar 2009, 15:59
neeshpal wrote:
should be B.

because of the use of "such as" and because of parallelism.

On the basis of growth rates of large modern reptiles such as the Galapagos tortoise and (on the basis of ) examinations of fossils of juvenile dinosaurs, scientists estimate that the largest dinosaurs probably lived to be between 100 and 200 years old.

neeshpal,

Thanks for your explanation... what is wrong with A? can you explain.. I thought 'based on' sounded better than 'on the basis' ..
Manager
Joined: 24 Feb 2007
Posts: 153
Location: nj
Re: 1000 SC -- growth rates  [#permalink]

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24 Mar 2009, 11:24
3
ugimba wrote:
neeshpal wrote:
should be B.

because of the use of "such as" and because of parallelism.

On the basis of growth rates of large modern reptiles such as the Galapagos tortoise and (on the basis of ) examinations of fossils of juvenile dinosaurs, scientists estimate that the largest dinosaurs probably lived to be between 100 and 200 years old.

neeshpal,

Thanks for your explanation... what is wrong with A? can you explain.. I thought 'based on' sounded better than 'on the basis' ..

"Based on" ---> here it looks like scientists are based on but actually their estimates are based.

In general but not always "based" is used for something physical and "basis" for abstract.

sentence wants to convey that the main reason behind their estimation is the growth rate .....etc etc..

so " on the basis" is used.

based on: Scientists estimation is based on the growth rates of ...etc etc..
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Concentration: Finance, Technology
GMAT 1: 650 Q48 V31
GMAT 2: 770 Q50 V47
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Re: Based on the growth rates of large modern reptiles such as  [#permalink]

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08 Aug 2012, 00:42
1
1
"Such as" should be used so C,D,E out

A. Based on X and Y, Scientists estimate
based on modifying Scientists and Scientists are not based on X and Y.

B. On the basis of X and Y, Scientists estimate - is correct

A would be correct, if we were given: Based on X and Y, Estimatimation of scientist...
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Joined: 12 Jul 2012
Posts: 17
Re: Based on the growth rates of large modern reptiles such as  [#permalink]

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08 Aug 2012, 05:21
2
Just taking a wild guess on whats wrong with A. In the first part of the statement we are using "the growth rates" whereas we are not using "the examinations" in the second part of statement. So is it breaking the parallelism. Experts please guide.

Based on the growth rates of large modern reptiles such as the Galapagos tortoise and examinations of fossils of juvenile dinosaurs, scientists estimate that the largest dinosaurs probably lived to be between 100 and 200 years old.
Senior Manager
Joined: 27 Dec 2016
Posts: 323
Re: Based on the growth rates of large modern reptiles such as  [#permalink]

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19 Nov 2017, 18:04
mikemcgarry GMATNinjaTwo GMATNinja

Hi,

Could one of you guys please explain why option B is correct and not A? I choose A simply because I founded A to be more concise than B. I went through all of the comments here where multiple people said A is wrong because "Based on" is modifying the scientists. I am unable to see this. I am not quite sure how "based on" seems to be modifying "scientists"? Could you please explain this to me? Would greatly appreciate it!
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Re: Based on the growth rates of large modern reptiles such as  [#permalink]

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20 Nov 2017, 17:55
csaluja wrote:
mikemcgarry GMATNinjaTwo GMATNinja

Hi,

Could one of you guys please explain why option B is correct and not A? I choose A simply because I founded A to be more concise than B. I went through all of the comments here where multiple people said A is wrong because "Based on" is modifying the scientists. I am unable to see this. I am not quite sure how "based on" seems to be modifying "scientists"? Could you please explain this to me? Would greatly appreciate it!

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Re: Based on the growth rates of large modern reptiles such as  [#permalink]

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09 Aug 2019, 14:57
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Re: Based on the growth rates of large modern reptiles such as   [#permalink] 09 Aug 2019, 14:57
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