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Senior Manager
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Five hundred million different species of living creatures [#permalink]
 12 Apr 2007, 19:01
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Five hundred million different species of living creatures have appeared on Earth, nearly 99 percent of them vanishing.
A. Five hundred million different species of living creatures have appeared on Earth, nearly 99 percent of them vanishing.
B. Nearly 99 percent of five hundred million different species of living creatures that appeared on Earth have vanished.
C. Vanished are nearly 99 percent of the five hundred million different species of living creatures that appeared on Earth.
D. Of five hundred million different species of living creatures that have appeared on Earth, nearly 99 percent of them have vanished.
E. Of the five hundred million different species of living creatures that have appeared on Earth, nearly 99 percent have vanished.
OA: E
Ack! Please Explain.
Why can't B be the answer?
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Manager
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Agree with Kevin why can B cant be the answer
This question has also stumped me twice.
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Director
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Re: SC - species and vanish (GOD MODE) [#permalink]
13 Apr 2007, 06:28
ricokevin wrote: Five hundred million different species of living creatures have appeared on Earth, nearly 99 percent of them vanishing.
A. Five hundred million different species of living creatures have appeared on Earth, nearly 99 percent of them vanishing.
B. Nearly 99 percent of five hundred million different species of living creatures that appeared on Earth have vanished.
C. Vanished are nearly 99 percent of the five hundred million different species of living creatures that appeared on Earth.
D. Of five hundred million different species of living creatures that have appeared on Earth, nearly 99 percent of them have vanished.
E. Of the five hundred million different species of living creatures that have appeared on Earth, nearly 99 percent have vanished.
OA: E
Ack! Please Explain.
Why can't B be the answer?
In choice B, "that appeared on Earth" seems to refer to "nearly 99 % of 500 million different species of living creatures", whereas we know that it should refer to "500 million different species of living creatures"
SC questions that are underlined entirely tends to be modification questions. Make sure modifier is referring to the logical modifyee.
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Re: SC - species and vanish (GOD MODE) [#permalink]
13 Apr 2007, 06:39
ricokevin wrote: Five hundred million different species of living creatures have appeared on Earth, nearly 99 percent of them vanishing.
A. Five hundred million different species of living creatures have appeared on Earth, nearly 99 percent of them vanishing.
B. Nearly 99 percent of five hundred million different species of living creatures that appeared on Earth have vanished.
C. Vanished are nearly 99 percent of the five hundred million different species of living creatures that appeared on Earth.
D. Of five hundred million different species of living creatures that have appeared on Earth, nearly 99 percent of them have vanished.
E. Of the five hundred million different species of living creatures that have appeared on Earth, nearly 99 percent have vanished.
OA: E
Ack! Please Explain.
Why can't B be the answer?
Here's my take -
The key is the use of the article "The" and the use of present perfect tense in choice E.
Choice B leaves open the possibility that more than 500 million diff species may have appeared on earth. E make is specific - only 500 mill diff species have appeared and 99% of these have vanished.
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Manager
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B and E seem very close but I will choose E because of the use of the article "The".
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Director
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Hi ricokevin,
The OA is B only.
The problem with E is that both the verbs are in present perfect meaning that during the course of species' appearance the species started vanishing.
Check out the link below:
http://www.gmatclub.com/phpbb/viewtopic.php?t=43741
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Senior Manager
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vineetgupta wrote: Hi ricokevin, The OA is B only. The problem with E is that both the verbs are in present perfect meaning that during the course of species' appearance the species started vanishing. Check out the link below: http://www.gmatclub.com/phpbb/viewtopic.php?t=43741Then I got it right!!! 
tough one.
Thanks guys~
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Re: SC - species and vanish (GOD MODE) [#permalink]
14 Apr 2007, 08:20
ricokevin wrote: Five hundred million different species of living creatures have appeared on Earth, nearly 99 percent of them vanishing.
A. Five hundred million different species of living creatures have appeared on Earth, nearly 99 percent of them vanishing.
B. Nearly 99 percent of five hundred million different species of living creatures that appeared on Earth have vanished.
C. Vanished are nearly 99 percent of the five hundred million different species of living creatures that appeared on Earth.
D. Of five hundred million different species of living creatures that have appeared on Earth, nearly 99 percent of them have vanished.
E. Of the five hundred million different species of living creatures that have appeared on Earth, nearly 99 percent have vanished.
OA: E
Ack! Please Explain.
Why can't B be the answer?
Between B and E i choose B. Because E suggest that species vanished before apparing because of the use of present tense. so my choice is B
Javed.
Cheers!
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Manager
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This question is testing clarity and subject verb agreement. Between B and E. E is clearer.
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VP
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vineetgupta wrote: Hi ricokevin, The OA is B only. The problem with E is that both the verbs are in present perfect meaning that during the course of species' appearance the species started vanishing. Check out the link below: http://www.gmatclub.com/phpbb/viewtopic.php?t=437412 OAs 
I think E is correct
E takes into account the 1% of animals who are still living.
It is an SC of type: Past and present participle
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Re: SC - species and vanish (GOD MODE) [#permalink]
14 Apr 2007, 11:36
ricokevin wrote: Five hundred million different species of living creatures have appeared on Earth, nearly 99 percent of them vanishing.
A. Five hundred million different species of living creatures have appeared on Earth, nearly 99 percent of them vanishing.
B. Nearly 99 percent of five hundred million different species of living creatures that appeared on Earth have vanished.
C. Vanished are nearly 99 percent of the five hundred million different species of living creatures that appeared on Earth.
D. Of five hundred million different species of living creatures that have appeared on Earth, nearly 99 percent of them have vanished.
E. Of the five hundred million different species of living creatures that have appeared on Earth, nearly 99 percent have vanished.
OA: E
Ack! Please Explain.
Why can't B be the answer?
E is correct because it states something that is continuing even today. B talks about something in past that is not happening now. My 2 cents
EDIT: Just saw another explanation. B seems better
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E)
I agree with techjanson, the action still continues, so Pres. Perfect is required. In these type of questions, when you're doubting between 2 answer choices that both look correct, ALWAYS compare them with the original sentence to verify that they are not changing the meaning. Remember that in SC you could have 2 answer choices that are correct, but the one you have to select is the BETTER of them!
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