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# Five hundred million different species of living creatures

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Re: Five hundred million different species of living creatures [#permalink]

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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

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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Re: Five hundred million different species of living creatures [#permalink]

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14 Apr 2007, 23:23
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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21 Jun 2007, 16:04
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Q) 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.

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21 Jun 2007, 16:10
It's B or E. I am not 100% sure, but would choose E for simplicity.

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21 Jun 2007, 18:56
B is awkward. Sounds like everyone is going to die, 99 percent already gone
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21 Jun 2007, 20:50
abhinava wrote:
Q) 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.

Yes its between B and E.

B looks like just a formal statement.
E - emphasizes on the 99%, which is important here.

Just using my ear, i am picking E. But, would like to know exact error with B.

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21 Jun 2007, 22:21
I think the reason B is wrong is the same as why D is wrong. At least by 1st look.

Both B and D state "of 500 million" It should read "of the 500 million"

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Re: SC - living creatures [#permalink]

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10 Aug 2009, 17:20
Five hundred million different species of living creatures have appeared on Earth, nearly 99 percent of them vanishing.

A. Five species of creatures have appeared on Earth, nearly 50 percent of them vanishing.
B. Nearly 50 percent of five species of creatures that appeared on Earth have vanished.
C. Vanished are nearly 50 percent of the five species of creatures that appeared on Earth.
D. Of five species of creatures that have appeared on Earth, nearly 50 percent of them have vanished.
E. Of the five species of creatures that have appeared on Earth, nearly 50 percent have vanished.

We have established that A and C are incorrect.
So I've taken out the hard stuff to try to simplify this question. (Please note "To try to" rather than "to try and")

I would say that B is incorrect, because the tenses are not consistent. "Appeared" goes with "vanished" (no 'have').

In D, "Of five" is incorrect. When you are identifying a subset of the population in the subsequent clause, the "five" actually serves the same function as "group" or "set", but has a numerical value.
So you would say, "Of the class of children we brought to the park, 50% were covered in dirt when they returned home".

In E, the two 'Of' are unrelated. They just happen to be the same word, meaning different things. Similar to the example of that that.
Also E fixes the issue from B, where the tenses were different. These are both past.

These are jsut my thoughts, I'd welcome some feedback. I've often found it useful to identify the "filler" in these SC questions and then work with the most simplistic version of the phrase - obviously needs to be done carefully to avoid changing the meaning. Just delete all adjectives.

P.s. Also I think that this sentence is very unclear anyway - it would be much better is we knew whether the species all appeared at the same time. A indicates that they appeared over a period of time, whereas B indicates that the species appeared all at once.

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23 Aug 2009, 18:49
OA is B.

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Re: SC - living creatures [#permalink]

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23 Aug 2009, 18:50
OA is B.

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Re: SC - living creatures [#permalink]

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24 Aug 2009, 00:31
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http://www.manhattangmat.com/forums/sc- ... -t614.html

As per the Manhattan Staff: E is the best in the options. (present perfect is needed)
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24 Aug 2009, 00:44
nocilis wrote:
Sorry guys don't have the OA. I picked this question from GMAT club in another thread.

Just went in to the other thread of same topic and found out The OA is B

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23 Oct 2009, 08:38
E for me.

"Appear" should be the present perfect tense not the past tense.

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19 Nov 2009, 14:23
oa is E
we need present perfect cause appearance of species in continual process

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29 Jun 2010, 15:33
OA is D.
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17 Jul 2010, 09:38
E for me.

Quote:
I'd go with E. Besides being generally awkward, B has a verb tense issue. It says "species that appeared" on earth. Appeared is simple past but, in this case, we want present perfect. We use past tense to discuss something that is completely over; we use present perfect to discuss something that started in the past but is either still true or still going on in the present. It is still true that the species appeared, so we want to say "have appeared" - which answer E does use and answer B does not.

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17 Jul 2010, 11:35
I would go with D, (stated below)

D. Of five hundred million different species of living creatures that have appeared on Earth, nearly 99 percent of them have vanished.

the "them" clearly refers back to "species"

where as in E.

E. Of the five hundred million different species of living creatures that have
appeared on Earth, nearly 99 percent have vanished.

the use of "have" is plural, but the subject is "the five hundred million different species" (it's singular because of the "the") so it doesn't make sense.

that's my just 0.02. sucks there is no OA, would love to know the right answer =)
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17 Jul 2010, 22:13
Awesome question. OA is E

I remember this pattern from following SC. Same applies here.

Although about 99 percent of the more than 50 million Turks are Muslims, the republic founded by Mustafa Kemal Ataturk in 1923 is resolutely secular.

a. Although about 99 percent of the more than 50 million
b. Although about 99 percent of over 50 million of the
c. Although about 99 percent of more than 50 million
d. Despite the fact that about 99 percent of more than 50 million
e. Despite the fact that about 99 percent of over 50 million

OA : A

99 percent of the more than 50 million
Of the five hundred million different species ---> this SC.

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Re: SC - living creatures [#permalink]

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29 Jul 2010, 06:51
According to my source (GMATPrep), OA is D.
The issue I have with E is that I dont really like "99 percent". 99 percent of what?? I have seen other OE ruling out this kind of construcions.
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29 Jul 2010, 06:57
According to my source (GMATPrep), OA is D.
The issue I have with E is that I dont really like "99 percent". 99 percent of what?? I have seen other OE ruling out this kind of construcions.
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Re: SC - Species   [#permalink] 29 Jul 2010, 06:57

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