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Hydrocarbons, with which fruit flies perfume themselves in

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Hydrocarbons, with which fruit flies perfume themselves in [#permalink]

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New post 01 Sep 2008, 14:38
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Hydrocarbons, with which fruit flies perfume themselves in species-specific blends, are known to be important in courtship, and apparently this assists flies that taste the hydrocarbons on prospective mates to distinguish their own species from that of others.
A. and apparently this assists flies that taste the hydrocarbons on prospective mates to distinguish their own species from that of
B. and apparently this assists flies when they taste the hydrocarbons on prospective mates in distinguishing their own species from those of
C. which apparently assists flies that tastes the hydrocarbons on prospective mates in being able to distinguish their own species from
D. apparently assisting flies to taste the hydrocarbons on prospective mates to distinguish their own species from those of
E. apparently assisting flies that taste the hydrocarbons on prospective mates in distinguishing their own species from


In E "in distinguishing their own species from" is correct???

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Re: SC to/ in [#permalink]

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New post 01 Sep 2008, 14:54
arorag wrote:
Hydrocarbons, with which fruit flies perfume themselves in species-specific blends, are known to be important in courtship, and apparently this assists flies that taste the hydrocarbons on prospective mates to distinguish their own species from that of others.
A. and apparently this assists flies that taste the hydrocarbons on prospective mates to distinguish their own species from that of
B. and apparently this assists flies when they taste the hydrocarbons on prospective mates in distinguishing their own species from those of
C. which apparently assists flies that tastes the hydrocarbons on prospective mates in being able to distinguish their own species from
D. apparently assisting flies to taste the hydrocarbons on prospective mates to distinguish their own species from those of
E. apparently assisting flies that taste the hydrocarbons on prospective mates in distinguishing their own species from


In E "in distinguishing their own species from" is correct???


Please underline the Question.


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.. :lol:

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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Last edited by x2suresh on 01 Sep 2008, 16:20, edited 1 time in total.

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Re: SC to/ in [#permalink]

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New post 01 Sep 2008, 16:07
x2suresh wrote:
arorag wrote:
Hydrocarbons, with which fruit flies perfume themselves in species-specific blends, are known to be important in courtship, and apparently this assists flies that taste the hydrocarbons on prospective mates to distinguish their own species from that of others.
A. and apparently this assists flies that taste the hydrocarbons on prospective mates to distinguish their own species from that of
B. and apparently this assists flies when they taste the hydrocarbons on prospective mates in distinguishing their own species from those of
C. which apparently assists flies that tastes the hydrocarbons on prospective mates in being able to distinguish their own species from
D. apparently assisting flies to taste the hydrocarbons on prospective mates to distinguish their own species from those of
E. apparently assisting flies that taste the hydrocarbons on prospective mates in distinguishing their own species from


In E "in distinguishing their own species from" is correct???


Please underline the Question.


Yes. Ppl. Pls underlie the part you want to discuss on. I think the ANS should be D. "distinguish their own species from those (species) of others" & "assist to"

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Re: SC to/ in [#permalink]

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New post 03 Sep 2008, 05:18
I think E is correct. You can very well write "distinguish own species from others". No need to add "those of"

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Re: SC to/ in [#permalink]

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New post 03 Sep 2008, 08:50
Yes. We need those when we are referring to a part of the whole. When a whole to whole comparison is made, those is unnecessary

Species to species is a W to W comparison

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Re: SC to/ in   [#permalink] 03 Sep 2008, 08:50
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Hydrocarbons, with which fruit flies perfume themselves in

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