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# The number of plants and animal species that humans are

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Manager
Joined: 06 Aug 2005
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Location: Minneapolis
The number of plants and animal species that humans are [#permalink]

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25 Mar 2006, 19:08
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Question Stats:

86% (00:34) correct 14% (00:21) wrong based on 65 sessions

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The number of plants and animal species that humans are known to have forced to extinction in the last half millennium is over 800.
A) Same
B) humans are known as having forced to become extinct
C) humans are known for forcing to become extinct
D) are known that human forced to become extict
E) are known as having been forced to extinction by humans

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Senior Manager
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25 Mar 2006, 19:55
My choice A. All other choices distort the meaning of the sentence.

- Vipin

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Manager
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25 Mar 2006, 21:01
What is known?, the number? or humans?
In this case, the number is known. In the sense, ABC are out.
Between D and E, I go for E.
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GMAT by 8th JUL

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Director
Joined: 27 Feb 2006
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26 Mar 2006, 13:22
^ E ^

"humans" in a passive form in A, B and C are not correct to modify the plant and animal species. D sounds awkward too.

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Director
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27 Mar 2006, 03:29
Go with E.

It is the plants and animals that have gone into extinction

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GMAT Club Legend
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28 Mar 2006, 08:55
Would go for A. E is no good because of passive construction.
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Best Regards,

Paul

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Intern
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28 Mar 2006, 10:31
Even though it is a little awkward, I think A is right too. E changes the meaning slightly and is passive.

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VP
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31 Mar 2006, 07:54
Is definitely A. E is a good competitor, but A is more consise.

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Director
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Re: SC - The number [#permalink]

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31 Mar 2006, 23:13
shailu22 wrote:
The number of plants and animal species that humans are known to have forced to extinction in the last half millennium is over 800.
A) Same
B) humans are known as having forced to become extinct
C) humans are known for forcing to become extinct
D) are known that human forced to become extict
E) are known as having been forced to extinction by humans

I would go with A.
E has more degree of passiveness.

Regards,
Brajesh

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Intern
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Re: SC - The number [#permalink]

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02 Apr 2006, 11:28
b14kumar wrote:
shailu22 wrote:
The number of plants and animal species that humans are known to have forced to extinction in the last half millennium is over 800.
A) Same
B) humans are known as having forced to become extinct
C) humans are known for forcing to become extinct
D) are known that human forced to become extict
E) are known as having been forced to extinction by humans

I would go with A.
E has more degree of passiveness.

Regards,
Brajesh

"The number of .." should be singular. "E" violates the rule.

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Manager
Joined: 31 May 2006
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24 Jun 2006, 06:06
OA is A
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Learn and let others learn

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Director
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24 Jun 2006, 06:18
A.

The only other close option is E, and it is passive. Hence A.
_________________

Uh uh. I know what you're thinking. "Is the answer A, B, C, D or E?" Well to tell you the truth in all this excitement I kinda lost track myself. But you've gotta ask yourself one question: "Do I feel lucky?" Well, do ya, punk?

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Manager
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24 Jun 2006, 11:17
A it is

was confused at first to see "the number" and "are" used together but then realised my error

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Current Student
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24 Jun 2006, 22:54
The GMAT almost always prefers the active voice.

(A) edges over E.

2:24

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Verbal Forum Moderator
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Re: The number of plants and animal species that humans are [#permalink]

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19 May 2015, 01:42
Bumping this thread for further review and practice
_________________

Regards,

S

Consider +1 KUDOS if you find this post useful

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Manager
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Re: The number of plants and animal species that humans are [#permalink]

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20 May 2015, 23:36
The number of ... is over 800 - main clause
the underlined part following the relative pronoun that has no flaws

Rearranging the words for better understanding
(that) humans are known to --> (that) are known to humans which in turn act as a subject of the relative clause

the remaining sentences cite the reason for the extinction of species is ONLY humans

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Director
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Re: The number of plants and animal species that humans are [#permalink]

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07 Sep 2017, 07:44
Idiom.

"Known" + to

Humans are known to have done something. Only A gets it right.
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Thanks & Regards,
Anaira Mitch

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Re: The number of plants and animal species that humans are   [#permalink] 07 Sep 2017, 07:44
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