Organized in 1966 by the Fish and Wildlife Service, the : GMAT Sentence Correction (SC)
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# Organized in 1966 by the Fish and Wildlife Service, the

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Director
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Organized in 1966 by the Fish and Wildlife Service, the [#permalink]

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19 Mar 2006, 11:18
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Organized in 1966 by the Fish and Wildlife Service, the Breeding Bird Survey uses annual roadside counts along established routes for monitoring of population changes of as many as, or of more than 250 bird species, including 180 songbirds.

A) for monitoring of population changes of as many as, or of
B) to monitor population changes of as many, or
C) to monitor changes in the populations of
D) that monitors population changes of
E) that monitors changes in the populations of as many as, or
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Director
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19 Mar 2006, 11:39
^ A ^

Organized in 1966 by the Fish and Wildlife Service, the Breeding Bird Survey uses annual roadside counts along established routes for monitoring of population changes of as many as, or of more than 250 bird species, including 180 songbirds.

A) for monitoring of population changes of as many as, or of --->Correct

B) to monitor population changes of as many, or ---> "as many" is not correct

C) to monitor changes in the populations of ---> "population" is an uncountable noun. it cannot have "s"

D) that monitors population changes of ---> the thing we modify is plural. we cannot have a singular verb

E) that monitors changes in the populations of as many as, or ---> same fault as in D
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19 Mar 2006, 19:24
By POE, I find A as the correct option.

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Brajesh
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19 Mar 2006, 21:00
I reviewed the choices again and I found that in C we are using 'populations' correctly to qualify 250 bird species.
So 'populations' is used correctly here.

I am leaning toward C now.

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Brajesh
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19 Mar 2006, 22:13
A) 'for monitoring of population changes' is awkward
B) 'as many' is incorrect

D and E makes it sounds like the roadside counts monitors the changes, and not the survey itself.

C is the best choice.
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20 Mar 2006, 02:36
The OA is C

OE:

Idiom+Rhetorical construction

Several changes will help make this awkward, wordy sentence easier to understand. A statement of purpose can be introduced by in order to x; the in order may be omitted and the purpose given with the concise to monitor. Changes in the populations of is clearer than population changes of. Of as many as, or of is wordy and should be eliminated.

C. Correct This sentence uses to monitor to introduce a clear statement of purpose; changes in the populations of is precise; wordiness has been eliminated.
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20 Mar 2006, 12:24
I dont understand how "populations" can be true !

It is an uncountable noun
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20 Mar 2006, 14:16
C is best fit.

When surfing the net, I find 'populations' used to describe population of various different groups For. E.g. The Institute of Bird Populations
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20 Mar 2006, 19:30
selene wrote:
I dont understand how "populations" can be true !

It is an uncountable noun

Infact I was also confused and opted for A but later on I found that C is using 'populations' to qualify 250 bird species.
population of one bird species.
populations of 250 bird species.

Other example:

In sociology and biology, a population is the collection of people, or organisms of a particular species, living in a given geographic area, or space.
In biology, plant and animal populations are studied.
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20 Mar 2006, 19:46
C,D out for meaning
counts do not monitor but are used for monitoring so E is out
to monitor seems appropriate so i go for B
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20 Mar 2006, 19:50
reading sentence suggest we are taking of as many as or more than 250 species ... which means >=

but C says more than 250 which means > always ... how can it be correct answer i am still not able to understand.
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20 Mar 2006, 20:25
gmatacer wrote:
reading sentence suggest we are taking of as many as or more than 250 species ... which means >=

but C says more than 250 which means > always ... how can it be correct answer i am still not able to understand.

B is out because 'population changes' is not as clear as 'changes in population' used in C.
Moreover, 'as many as' is the correct structure which is not used in B.

In A, 'Of as many as, or of' is wordy and should be eliminated.
In C we have used 'more than', it means it is >250 species.
From mathematical point of view '>' is a superset of '>=' so C is less wordy and also covering '>='.
Therefore C looks like the best option and hence should be the answer.

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21 Mar 2006, 12:07
I disagree,
C only covers greater than but not equal to.

x >= 250 means x can be 250 or 251 or 251+.
x > 250 means x can be 251 or 251+.

So C changes the meaning. C can't be it if we have to keep the meaning same. Otherwise "C" is certainly less wordy and sounds good too.
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22 Mar 2006, 00:06
AlHindi wrote:
I disagree,
C only covers greater than but not equal to.

x >= 250 means x can be 250 or 251 or 251+.
x > 250 means x can be 251 or 251+.

So C changes the meaning. C can't be it if we have to keep the meaning same. Otherwise "C" is certainly less wordy and sounds good too.

The meaning is not changed since the sentence presented was incorrect in the first place....
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23 Mar 2006, 21:09
AlHindi wrote:
I disagree,
C only covers greater than but not equal to.

x >= 250 means x can be 250 or 251 or 251+.
x > 250 means x can be 251 or 251+.

So C changes the meaning. C can't be it if we have to keep the meaning same. Otherwise "C" is certainly less wordy and sounds good too.

Your logic is perfectly correct but this can not be applied in this scenario.

Let's say we have ten bird species:

U = {B1,B2 B3 B4 B5 B6 B7 B8 B9 B10} where U is universal set.

As per A:

A) for monitoring of population changes of as many as, or of more than 4 bird species

It means 4 bird species (Say {B1, B2, B3, B4}) or more than 4 bird species (Say {B1 B2 B3 B4 B5 B6 B7 B8 B9 B10}).
Here more than 4 bird species does not mean that we should count from B5 to B10.It may include from B1 to B10.

As per C:

C) to monitor changes in the populations of more than 4 bird species.

So it means more than 4 birds species. (It may include B1 B2 B3 B4 B5 B6 B7 B8 B9 B10)
Again Here more than 4 bird species does not mean that we should count B5, B6, B7, B8, B9, B10.It may include from B1 to B10.
So C will always cover 4 bird species.

Regards,
Brajesh
23 Mar 2006, 21:09
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