619 /1000sc : GMAT Sentence Correction (SC)
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# 619 /1000sc

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Manager
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16 Nov 2009, 21:50
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70% (01:40) correct 30% (00:51) wrong based on 38 sessions

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Hi !

619. Scientific interest in providing suitable habitats for bottom-dwelling animals such as river clams arises not because they are important sources of human food but from their role as an integral link in the Aquatic food chain.
(A) not because they are important sources of human food
(B) although they are not an important sources of human food
(C) not in that they are important as human sources of food
(D) not from their importance as a source of human food
(E) not from being important sources of food for human beings

OA
[Reveal] Spoiler:
D , but there are several pl. nouns: clams, animals, habitats

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16 Nov 2009, 22:01
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Ayrish wrote:
Hi !

619. Scientific interest in providing suitable habitats for bottom-dwelling animals such as river clams arises not because they are important sources of human food but from their role as an integral link in the Aquatic food chain.
(A) not because they are important sources of human food
(B) although they are not an important sources of human food
(C) not in that they are important as human sources of food
(D) not from their importance as a source of human food
(E) not from being important sources of food for human beings

OA
[Reveal] Spoiler:
D , but there are several pl. nouns: clams, animals, habitats

scientific interest (S) ... arises (V) .. not from their importance as a source of human food but from their role as a integral link..

D is Parallel and perfect.

Their --> is not ambiguous here. It clearly refers to Clams (Animals)
dwelling animals such as river clams --> It refers animals.. such as Clams.

Habitats --> Places/Enviornment where Animals, people... etc. will live.
Logically their.. not referring to "habitats" here.

E --> Being redundant.
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17 Nov 2009, 12:05
619. Scientific interest in providing suitable habitats for bottom-dwelling animals such as river clams arises not because they are important sources of human food but from their role as an integral link in the Aquatic food chain.
(A) not because they are important sources of human food
(B) although they are not an important sources of human food
(C) not in that they are important as human sources of food
(D) not from their importance as a source of human food
(E) not from being important sources of food for human beings

A: Problem with parallelism. If A worked, the second half of the sentence would need to read "but because they are important sources..."
B: The article an demands a singular noun. Sources is plural. Moreover, the transition between food and but does not make sense.
C: The phrase in that is problematic here. To say "interest arises in that" is not a logical construction.
D: Sentence is parallel and the construction not from x but from y is idiomatically correct.
E: Always be wary when the word "being" appears in a sentence choice. In this choice, it is illogical to compare something being (verb) with something's role (noun).

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02 Jan 2011, 10:08
not from X but from y-------idiomatic and parallel....D win
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02 Jan 2011, 21:51
(D)

(A) not because they are important sources of human food --> Parallelism error in 'because'
(B) although they are not an important sources of human food --> Awkward sentence construction using 'although-but'
(C) not in that they are important as human sources of food --> Awkward sentence construction 'Not in that'
(D) not from their importance as a source of human food --> Correct. 'Their' refers only to bottom-dwelling animals
(E) not from being important sources of food for human beings --> Wrong usage of 'being'
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07 Jan 2011, 10:16
D is perfect parallel one. from their .... but from their ....
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06 Apr 2011, 12:15
D ...not from, but from
E is wrong because of "being"
Re: 619 /1000sc   [#permalink] 06 Apr 2011, 12:15
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