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# Paleontologist Stephen Jay Gould has argued that many

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Senior Manager
Joined: 05 Oct 2008
Posts: 263
Paleontologist Stephen Jay Gould has argued that many [#permalink]

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26 Jan 2009, 05:25
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Paleontologist Stephen Jay Gould has argued that many biological traits are not the products of natural selection, favored due to their enhancement of reproduction or survival, but that they are simply random by-products of other evolutionary developments.

A due to their enhancement of reproduction or survival, but that they are

B due to the reproduction or survival they enhance, but they are

C because they enhance reproduction or survival, but

D because they enhance reproduction or survival, but are

E because of enhancing reproduction or survival, but are

none of the answer choices have the parallelism – not x but y vs. is not x but is y. how do we select the correct answer?
Also, because of/due to - can someone explain. Thanks.
SVP
Joined: 17 Jun 2008
Posts: 1507

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26 Jan 2009, 10:54
I will go for C. It shows the construction "not X but Y".

"due to" needs to be followed by a subject. "because of" can be followed by a clause.
Manager
Joined: 21 Aug 2008
Posts: 85

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26 Jan 2009, 10:58
Only two idioms are right:
1. Not X but Y
2. Not only X but also Y

Hence C is right.
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"The highest result of education is tolerance."

Senior Manager
Joined: 05 Oct 2008
Posts: 263

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27 Jan 2009, 01:50
Agree with C, but the issue is that OA is D.

Any thoughts?
SVP
Joined: 17 Jun 2008
Posts: 1507

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27 Jan 2009, 01:57
I think, this is because without "are" option C gets ambiguos due to the middlemen "because....". It is not clear whether "but" compares the second part to the middlemen or to the first part after "not".

Other thoughts?
Re: SC - Biology   [#permalink] 27 Jan 2009, 01:57
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