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# SC Flies

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Senior Manager
Joined: 19 Mar 2008
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24 Aug 2008, 06:57
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What's wrong with (D)

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SVP
Joined: 29 Aug 2007
Posts: 2420
Re: SC Flies  [#permalink]

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24 Aug 2008, 08:37
judokan wrote:

What's wrong with (D)

C. Which is require here to modify courtship.

In D, them modifying phrase modifies the whole clause but it should only modify courtship because courtship assists flies to test hydrocsarbons ................................
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Director
Joined: 12 Jul 2008
Posts: 511
Schools: Wharton
Re: SC Flies  [#permalink]

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24 Aug 2008, 09:37
judokan wrote:

What's wrong with (D)

E for me.

You don't need "those of" at the end.

"to distinguish their species from others."

those of others implies you're distinguishing from a specific thing associated with species. here, you're just distinguishing one species from another.
Manager
Joined: 20 May 2008
Posts: 55
Re: SC Flies  [#permalink]

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24 Aug 2008, 11:51
E for me. distinguish species from those of others is awkward.

It should end with "distinguish their own species from others. "
Senior Manager
Joined: 31 Jul 2008
Posts: 270
Re: SC Flies  [#permalink]

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24 Aug 2008, 12:30
A :

lemme write what i feel wrong in others :

B "when they" this is not required , making wordy , also " those " is plural which is wrong as species is singular

C "being" not required , making passive

D "those"

E "from" it shud be from that of others ; u cannot compare "species" to " others "
Senior Manager
Joined: 20 Feb 2008
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Location: Bangalore, India
Schools: R1:Cornell, Yale, NYU. R2: Haas, MIT, Ross
Re: SC Flies  [#permalink]

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24 Aug 2008, 13:11
For me the Answer should be A

The choice for me was between A and E, But you would distinguish one species (singular) from that of others.

Also the phrase 'and apparently this assists...', modifies the phrase 'Hydrocarbons, with which fruit flies perfume themselves....., are known to be important in courtship,'
Also are refers to Hydrocarbons and would require a noun modifier,'apparently assisting' in choice E is an adverbial modifier.
Intern
Joined: 10 Aug 2008
Posts: 21
Schools: Emory Goizueta (Class of 2013)
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WE 2: Marketing consultant
Re: SC Flies  [#permalink]

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25 Aug 2008, 00:17
E for me.
D is wrong because the correct idiom should be "assist...in doing...."
Director
Joined: 03 Sep 2006
Posts: 836
Re: SC Flies  [#permalink]

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25 Aug 2008, 02:27
hydrocarbons don't assist the flies in the process of tasting.....

hydrocarbons assist those flies which taste........

Therefore it should be "E".

A and B are ruled out because of the wrong usage of the conjunction "and"

C has incorrect reference , "which".
SVP
Joined: 07 Nov 2007
Posts: 1728
Location: New York
Re: SC Flies  [#permalink]

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25 Aug 2008, 06:55
judokan wrote:

What's wrong with (D)

Idiom --distinguish X from Y.

X and Y must be parall.

D) Distinguish their own species from those of others

others=other species.

you are comparing "Species" with "Those of Species" --> Those refer to what??? eyes, legs,, hands..

D is incorrect

E ) Distinguish their own species from others (other species)

C -- which incorrectly modifies "courtship" -- > courtship is not assisting flies..

A and B.. --> conjuction "and" mislead that "Hydrocabons assiting flies to .."

"Fruit flies perfuming themselves with specific species blends with Hydrocarbons "
------------> this is assisting...flies to ..
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Senior Manager
Joined: 06 Apr 2008
Posts: 390
Re: SC Flies  [#permalink]

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25 Aug 2008, 09:04
IMO E)

You dont need "and" so A) and B) goes

"which" is wrong in C)

In D) "those of others" is wrong
Senior Manager
Joined: 19 Mar 2008
Posts: 344
Re: SC Flies  [#permalink]

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25 Aug 2008, 09:20
Still confused about the "those" in D.

Can I say that?

distinguish their species from those of others (where those means "the species)
Is it a correct idiom? or it is only not ll?

BTW, is species plural?

OA is E
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Location: New York
Re: SC Flies  [#permalink]

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25 Aug 2008, 09:29
judokan wrote:
Still confused about the "those" in D.

Can I say that?

distinguish their species from those of others (where those means "the species)
Is it a correct idiom? or it is only not ll?

BTW, is species plural?

OA is E

Distinguish Apples from Oranges
Distinguish White Apples from Other Apples
Distinguish White Apples from Others (Here its clear Others --Other Apples)

Distinguish White Apples from those of Others ( those of Other Apples --> those represents what.)

Distinguish Leaves of Apples from those of Oranges [ those- leaves ]

Is it clear now?
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Senior Manager
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Posts: 344
Re: SC Flies  [#permalink]

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25 Aug 2008, 18:30
x2suresh wrote:
judokan wrote:
Still confused about the "those" in D.

Can I say that?

distinguish their species from those of others (where those means "the species)
Is it a correct idiom? or it is only not ll?

BTW, is species plural?

OA is E

Distinguish Apples from Oranges
Distinguish White Apples from Other Apples
Distinguish White Apples from Others (Here its clear Others --Other Apples)

Distinguish White Apples from those of Others ( those of Other Apples --> those represents what.)

Distinguish Leaves of Apples from those of Oranges [ those- leaves ]

Is it clear now?

Thanks x2,

I understand your examples. Nice ones.

(1) For all below, the subject you are comparing is the apple itself. So you do not need “that/those”
Distinguish Apples from Oranges
Distinguish White Apples from Other Apples
Distinguish White Apples from Others (Here its clear Others --Other Apples)

(2) While, the following example compares the leaves of apple and leaves of orange. So, we need “those” here.
Distinguish Leaves of Apples from those of Oranges [ those- leaves ]

very clear.

But my problem is that I think the question I posted is more relevant to (2). We are not comparing the species of the flies, rather than the flies themselves …

Do I have any logic problem here?

BTW, is species plural? What is the singular form?

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Re: SC Flies &nbs [#permalink] 25 Aug 2008, 18:30
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# SC Flies

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