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# Reptiles, by drawing their body heat directly from the Sun

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Reptiles, by drawing their body heat directly from the Sun [#permalink]

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10 Feb 2013, 07:06
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Reptiles, by drawing their body heat directly from the Sun rather than burning calories to generate it, can survive on ten percent of the nourishment that a mammal of similar size would normally require

A) rather than burning calories to generate it
B) rather than the generation of body heat by burning calories
C) and not from generating it by burning calories
D) instead of by burning calories for generating it
E) instead of body heat generated by burning calories

Could someone explain the usage of rather than and instead of. I chose E.

I see a redundancy error in E. But if that error is eliminated can i choose E?
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Re: Reptiles, by drawing their body heat directly from the Sun [#permalink]

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10 Feb 2013, 07:25
rajathpanta wrote:
Reptiles, by drawing their body heat directly from the Sun rather than burning calories to generate it, can survive on ten percent of the nourishment that a mammal of similar size would normally require

A) rather than burning calories to generate it
B) rather than the generation of body heat by burning calories
C) and not from generating it by burning calories
D) instead of by burning calories for generating it
E) instead of body heat generated by burning calories

Could someone explain the usage of rather than and instead of. I chose E.

I see a redundancy error in E. But if that error is eliminated can i choose E?

Hi rajathpanta
I think we have a parrallelism issue in all the answer choices except for A and D : By drawing // rather than burning
Hence, E is wrong even if the redundancy is eliminated and IMO the use of instead of by is awkward.
Hope it helps
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Re: Reptiles, by drawing their body heat directly from the Sun [#permalink]

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11 Feb 2013, 05:21
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rajathpanta wrote:
Could someone explain the usage of rather than and instead of. I chose E.

"rather than" expresses a preference, whereas "instead of" expresses replacement

Moreover the "of" in instead of is a preposition, so "instead of" should always be followed by a noun, whereas "rather than" is used to compare nouns and verbs, so you can use nouns and verbs after rather than. In GMAT 'rather than' construction is more likely to be correct. If at all you have to guess, then guess the one with rather than in it.

e.g. I would prefer to go to school rather than sit idle at home

I wanted to play football instead of hockey.

rajathpanta wrote:
I see a redundancy error in E. But if that error is eliminated can i choose E?

I guess you mean to say that if we change (E) to-- instead of burning calories to generate it

Now there is not much difference b/w A and E apart from a slight contextual meaning difference. In A reptiles prefer one thing over another and in E reptiles replaced or chose one thing over another. You will never see such close answer choices in the GMAT. Any of these answer choices could be correct, but from the context it looks more likely that the reptiles prefer one thing over another.

Hope that helps,

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Re: Reptiles, by drawing their body heat directly from the Sun [#permalink]

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11 Feb 2013, 07:42
if this question is from gmatprep, it is all over the internet.

what is the source?
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Re: Reptiles, by drawing their body heat directly from the Sun [#permalink]

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11 Feb 2013, 08:04
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Re: Reptiles, by drawing their body heat directly from the Sun [#permalink]

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11 Feb 2013, 08:22
Yes, GMAT prep question pack. I feel this question is pretty old and GMAC has included all these old questions in the pack.
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Re: Reptiles, by drawing their body heat directly from the Sun [#permalink]

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11 Feb 2013, 23:09
GMAT never test the difference between "rather" and " instead of" . if you see a question testing this point, pls email me.

the problem with D is

"for generating"

"for doing" is not idiomatic way to show the purpose of a verb. "for doing" can modify a noun a a verb but if it modify a verb it show not the purpose of the other meaning relation with the verb, such as reason of main verb.

for example

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Re: Reptiles, by drawing their body heat directly from the Sun [#permalink]

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11 Feb 2013, 23:12
sorry for typein error, my laptop has touchpad not working.

for doing can be used to modify a noun or a verb. if it modifies a verb , it dose not show the purpose of the verb but the other meaning relation with that verb

for example

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Re: Reptiles, by drawing their body heat directly from the Sun [#permalink]

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02 Mar 2013, 02:59
mvamsee wrote:
Hi,
The OA is A. Source is GMAT software question pack 1.

Can we have an expert explanation? I realize that the question is testing parallelism, but am having hard time understanding what parts of speech are parallel.

Thank You,

Experts kindly help here. .

don't really understand the differences between instead, rather than in this example. .
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Re: Reptiles, by drawing their body heat directly from the Sun [#permalink]

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03 Mar 2013, 22:07
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Sachin9 wrote:
mvamsee wrote:
Hi,
The OA is A. Source is GMAT software question pack 1.

Can we have an expert explanation? I realize that the question is testing parallelism, but am having hard time understanding what parts of speech are parallel.

Thank You,

Experts kindly help here. .

don't really understand the differences between instead, rather than in this example. .

Responding to a pm:

Parallel Structure: Look at the structure of the sentence.

Reptiles, by doing A rather than doing B, can survive on ...

'doing A' and 'doing B' should be parallel.

drawing their body heat directly from the Sun rather than burning calories to generate it - 'drawing' needs 'burning'

'burn calories to generate heat' is the correct usage. You do 'this' to get 'that' result.
'burn calories for generating heat' is not.

'rather than' shows preference. 'instead of' means 'in stead of' i.e. 'in place of' and doesn't show preference.

He came to my party instead of his wife. - His wife was supposed to come but she couldn't so he came instead.

I would like to invite her rather than her husband. - Only person per couple will be invited and I would like to invite her, not her husband.

Here, reptiles prefer to get the heat directly from the Sun and hence, can survive on little nutrition. So 'rather than' is fine. In fact, even 'instead of' is not incorrect. Hence, even though some options use 'rather than' and some use 'instead of', the choice between these two is not your decision point.
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Reptiles, by drawing their body heat directly from the Sun [#permalink]

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12 Mar 2013, 23:03
Reptiles, by drawing their body heat directly from the Sun rather than burning calories to generate it, can survive on ten percent of the nourishment that a mammal of similar size would normally require

A) rather than burning calories to generate it
B) rather than the generation of body heat by burning calories
C) and not from generating it by burning calories
D) instead of by burning calories for generating it
E) instead of body heat generated by burning calories
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Re: Reptiles, by drawing their body heat directly from the Sun r [#permalink]

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13 Mar 2013, 05:10
mun23 wrote:
Reptiles, by drawing their body heat directly from the Sun rather than burning calories to generate it, can survive on ten percent of the nourishment that a mammal of similar size would normally require

A) rather than burning calories to generate it
B) rather than the generation of body heat by burning calories
C) and not from generating it by burning calories
D) instead of by burning calories for generating it
E) instead of body heat generated by burning calories

"rather than" is the correct term to compare the two, which leaves A and B. Option has "the generation of ..." which is not parallel with "drawing their..."
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Re: Reptiles, by drawing their body heat directly from the Sun r [#permalink]

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13 Mar 2013, 08:44
Reptiles, by drawing their body heat directly from the Sun rather than burning calories to generate it, can survive on ten percent of the nourishment that a mammal of similar size would normally require

A) rather than burning calories to generate it
B) rather than the generation of body heat by burning calories. parallelism: the generation is not parallel to "drawing"
C) and not from generating it by burning calories. awkward
D) instead of by burning calories for generating it. Gmat prefer rather than
E) instead of body heat generated by burning calories. Gmat prefer rather than
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Re: Reptiles, by drawing their body heat directly from the Sun [#permalink]

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10 Apr 2013, 19:38
Is it possible to argue that the "it" in correct answer choice A refers to "the sun" and is thus vague?
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Re: Reptiles, by drawing their body heat directly from the Sun [#permalink]

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10 Apr 2013, 21:11
mun23 wrote:
Reptiles, by drawing their body heat directly from the Sun rather than burning calories to generate it, can survive on ten percent of the nourishment that a mammal of similar size would normally require

A) rather than burning calories to generate it
B) rather than the generation of body heat by burning calories
C) and not from generating it by burning calories
D) instead of by burning calories for generating it
E) instead of body heat generated by burning calories

A) Correct.
B) "Drawing their body heat" is not parallel to "generation of body heat".
C) "Not from generating it by burning calories" is grammatically incorrect and does not make any sense.
D) Changes meaning -- original sentence does not discard "burning calories" totally ("rather than" only shows preference); but this sentence discards "burning calories" totally. "For generating" is unidiomatic -- correct usage is "to generate".
E) Changes meaning as in D. Parallelism issue as in B.
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Re: Reptiles, by drawing their body heat directly from the Sun [#permalink]

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20 Apr 2013, 15:43
mun23 wrote:
Reptiles, by drawing their body heat directly from the Sun rather than burning calories to generate it, can survive on ten percent of the nourishment that a mammal of similar size would normally require

A) rather than burning calories to generate it
B) rather than the generation of body heat by burning calories
C) and not from generating it by burning calories
D) instead of by burning calories for generating it
E) instead of body heat generated by burning calories

In real GMAT, "rather than" is always better than "instead of".
IMO, A is correct.

A) rather than burning calories to generate it
Correct. Parallelism. "drawing" // "burning"

B) rather than the generation of body heat by burning calories
Wrong. Not parallelism: "drawing" vs "the generation"

C) and not from generating it by burning calories
Wrong. The use of "and" is incorrect. It changes meaning.

D) instead of by burning calories for generating it
Wrong. "instead of by.." is unidiomatic.

E) instead of body heat generated by burning calories
Wrong. Not parallelism. "drawing" vs "body heat"
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Re: Reptiles, by drawing their body heat directly from the Sun [#permalink]

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02 May 2013, 02:32
All duplicate threads on this topic have been merged.

Please check and follow the Guidelines for Posting in Verbal GMAT forum before posting anything.
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Re: Reptiles, by drawing their body heat directly from the Sun [#permalink]

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08 May 2013, 10:25
In choice A what is the antecedent of "it". How do I know it doesn't refer to the sun?
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Re: Reptiles, by drawing their body heat directly from the Sun [#permalink]

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08 May 2013, 10:38
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"It" is ambiguous in option A. But option A is best out of all 5 options as other options got errors (not just ambiguity). Thus option A is correct answer.
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Re: Reptiles, by drawing their body heat directly from the Sun [#permalink]

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11 May 2013, 00:34
mvamsee wrote:
Hi,
The OA is A. Source is GMAT software question pack 1.

Can we have an expert explanation? I realize that the question is testing parallelism, but am having hard time understanding what parts of speech are parallel.

Thank You,

Reptiles, by drawing their body heat directly from the Sun rather than burning calories to generate it, can survive on ten percent of the nourishment that a mammal of similar size would normally require

A) rather than burning calories to generate it
B) rather than the generation of body heat by burning calories
C) and not from generating it by burning calories
D) instead of by burning calories for generating it
E) instead of body heat generated by burning calories

"by drawing their body heat directly from the Sun rather than burning calories to generate it" is the modifier, modifying reptiles and describes an action they do for survival.

We clan strait away strike D and E because they use "instead of" Of is the preposition and therefore needs noun just after it. X instead of Y. Y should be a noun,
"body heat generated by burning calories" and "by burning calories for generating it " are again wrong after instead of
since it is a comparison we don't need "and" which is used for joining the sentences rather than comparing it.
between A and B I guess A clearly wins on parallelism
"by drawing their body heat" "rather than burning calories"

hope it helps
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Re: Reptiles, by drawing their body heat directly from the Sun   [#permalink] 11 May 2013, 00:34

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