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# Because fish look through water, their eyes are very

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Because fish look through water, their eyes are very [#permalink]

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12 Jun 2008, 17:53
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Question Stats:

65% (01:12) correct 35% (00:17) wrong based on 585 sessions

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Because fish look through water, their eyes are very
different from a mammal.
A. from a mammal
B. from a mammal’s
C. from that of a mammal
D. than that of a mammal
E. than is a mammal’s.
[Reveal] Spoiler: OA

Last edited by WoundedTiger on 02 Nov 2014, 01:36, edited 2 times in total.
If you have any questions
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Re: Because fish look through water, their eyes are very [#permalink]

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02 Sep 2008, 16:58
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Please see if this explanation helps explaining B ( it is not my explanation - im just copying it from somewhere)

The presence of 'their eyes' indicates that, either the possesive form or 'that of' should appear in the 2nd part of the comparison in the plural form to maintain parallelism.
Hence i will look for 'from those of mammals'.

Based on above explanation C is incorrect choice and we are left with B
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Re: Q. Because fish look throguh water, their eyes are very [#permalink]

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16 Apr 2010, 12:15
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Because fish look throguh water, their eyes are very different from a mammal.

a. From a mammal
b. from a mammal's
c. from that of a mammal
d. than that of a mammal
e. than is a mammal's

Some thoughts:
1. Their eyes are different from mammal eyes.
=> "Their eyes" is parallel to "mammal eyes".
Mammal's =mammal eyes.

2. "Their eyes" is plural. There are two eyes. So, "that of a mammal" should be "those of a mammal".

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Re: Q. Because fish look throguh water, their eyes are very [#permalink]

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04 Jun 2014, 10:29
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gmattesttaker2 wrote:
Hello,

Because fish look through water, their eyes are very different from a mammal.

A. from a mammal
B. from a mammal’s
C. from that of a mammal
D. than that of a mammal
E. than is a mammal’s.

The OA is (B). I am wondering if (C) should be read as "from (those) of a mammal's". Should we be using "those" here instead of "that" since "those" refers to the eyes of the mammal whereas "that" will refer to the eyes of the fish? Thanks a lot for your help.

Regards,
Sri

Dear gmattesttaker2,
I'm happy to respond to your private message.

You are correct. Right now, in its current form, (C) is wrong because it seems to imply that, as a general rule, mammals have only one eye. Changing this to "from those of a mammal" would be 100% correct.

Notice that (B) is correct because, among other things, the possessive leaves open the number of eyes, so this is completely consistent with the correct number of eyes. As usual, this is another brilliant question from GMAC.

Also, notice what you have is quite wrong: it is ALWAYS wrong to use the possessive inside an "of" preposition for the same possessor. That is redundant and wrong.
correct: "those of a mammal"
incorrect: "those of a mammal's"

Does all this make sense?
Mike
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Re: Q. Because fish look throguh water, their eyes are very [#permalink]

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04 Jun 2014, 15:22
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Expert's post
PiyushK wrote:
I think comparison provided in option B is not correct, because mammal's leaves comparison ambiguous.

what is mammal's ? eyes or teeth or ears...

I remember I have seen discussion on such similar comparison on some thread earlier.
Tom's shoes are better than John's ... such similar sentence was discussed and it was considered incorrect because of vague nature of 's; comparison is not definitive.

Dear PiyushK,
My friend, I don't know who was in those discussions, but with all due respect, the conclusion reached in those discussion was flatly incorrect.

The comparisons:
Because fish look through water, their eyes are very different from a mammal's.
Tom's shoes are better than John's.
Brazil's economy is larger than India's.

are all 100% correct and 100% unambiguous. The second is an informal subject, but the first or third could be correct on the GMAT. In fact, the first WAS correct on the GMAT, in the paper test days. That alone should be proof that this is 100% acceptable by GMAT standards.

Because of parallelism, the second object is 100% clear. Remember: comparisons are a special case of parallelism.

Does all this make sense?
Mike
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Re: Q. Because fish look throguh water, their eyes are very [#permalink]

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15 Jun 2014, 07:59
mustdoit wrote:
Q. Because fish look throguh water, their eyes are very different from a mammal.

a. From a mammal
b. from a mammal's
c. from that of a mammal
d. than that of a mammal
e. than is a mammal's

OA:
[Reveal] Spoiler:
B

Q. Because fish look throguh water, their eyes are very different from a mammal.

a. From a mammal eyes were compared to mamal, parallel issue
b. from a mammal's
c. from that of a mammal eyes are plural, should use 'those' instead
d. than that of a mammal idiom error, different from is preferred over different than
e. than is a mammal's subject-verb, eyes are plural, 'is' is grammatically wrong, also 'than' as idiom error
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Re: Q. Because fish look throguh water, their eyes are very [#permalink]

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10 Jun 2015, 10:18
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Expert's post
AmoyV wrote:

From the reference of the question ("their eyes"), we know that "fish" is taken as a plural. So shouldn't we compare plural with plural - in other words, fish (a plural) with mammals (a plural). In this sense shouldn't Choice B read as:

from mammals'

from a mammal's?

Dear AmoyV,
My friend, I am happy to respond. First of all, there's no problem opening an old thread if you have a new question about it: that's exactly the correct thing to do. The mistake people, at least newbies, often make on GC is to open a brand new thread for a question that has already been posted multiple times. What you did is exemplary and requires no apology.

Here's the question again:
Q. Because fish look through water, their eyes are very different from a mammal.
A. from a mammal
B. from a mammal's
C. from that of a mammal
D. than that of a mammal
E. than is a mammal's

Here's a funny thing about comparisons. We absolutely need to compare like to like. The prompt sentence is obviously incorrect, because it doesn't make logical sense to compare an eye to a whole animal. We have to compare like to like, BUT (and this is a big "BUT'), the two terms of the comparison don't have to match in every last detail. Singular to plural is fine when we are talking about animals.

Part of this is the scientific idiom in English. When we say "the eye of a mammal," we are talking about a common structure shared by a large number of different species. The phrase is what we might call "implicitly plural" (my made-up term) even though it is explicitly grammatically singular. Making this explicitly plural ("the eyes of mammals") sounds a bit awkward: it's not what is common in scientific analysis of the natural world.

Part of this also is that when some students learn the matching patterns of parallelism and comparisons, they go overboard and get rigid about matching things down to the tiniest detail. This is too much. For example, it's perfectly correct to have verbs in parallel that have different tenses:
http://magoosh.com/gmat/2012/gmat-gramm ... rb-tenses/
There's always a danger of getting too mathematical and rule-based about grammar. Language is living, and you have to develop a feel for the living language.

Does all this make sense?
Mike
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Because fish look through water, their eyes are very [#permalink]

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05 Apr 2017, 22:09
bsd_lover wrote:
B's comparison is just as incorrect as Cs. "a mammal's" implies that many eyes are compared to one mammal's . For B to work, the mammal's would need to read mammals' and the a before the mammal (which makes it explicitly singular) would need to be removed.

Sorry, but this question's a dud.

Your're interpretation here isn't correct.

A - compares eyes to mammal
B - correct
C - that is singular
D - that is singular
E - "is" is singular. Would need to be "from those of a mammal".

Kudos if you agree!
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Re: Because fish look through water, their eyes are very different [#permalink]

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18 Apr 2017, 21:49
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shekyonline wrote:
b and c both are grammatically correct but B is more concise.
Hence. B.

I believe C is not correct here.
Here the comparison is between eyes(plural) of a fish and eyes of a mammal.

C says - that of a mammal. To maintain correct comparison, it should be those of a mammal.
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Re: Because fish look through water, their eyes are very [#permalink]

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19 Apr 2017, 19:31
Merged topics. Please, search before posting questions!
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Re: Because fish look through water, their eyes are very [#permalink]

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20 Apr 2017, 04:19
Because fish look through water, their eyes are very
different from a mammal.
A. from a mammal
B. from a mammal’s
C. from that of a mammal
D. than that of a mammal
E. than is a mammal’s.

here eyes of the fish (plural) are compared to eyes of mammal

in C and D that is singular
A eyes ===mammal wrong
In E than is a mammal's incorrect

B is best
Re: Because fish look through water, their eyes are very   [#permalink] 20 Apr 2017, 04:19
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