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Measuring more than five feet tall and ten feet long, the

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Measuring more than five feet tall and ten feet long, the [#permalink] New post 27 Oct 2008, 11:25
Measuring more than five feet tall and ten feet long, the Javan rhinoceros is often called the rarest large mammal on earth. None exist in zoos. Like the Indian rhino, the Javan has only one horn; African and Sumatran rhinos have two. While the Javan rhino habitat once extended across southern Asia, now there are fewer than one hundred of the animals in Indonesia and under a dozen in Vietnam. Very little is known about Javan rhinos because they lead secretive and solitary lives in remote jungles. Until recently, scientists debated whether females even have horns, and most scientific work has had to rely on DNA garnered from dung.

The near extinction of the Javan rhino is the direct result of human actions. For centuries, farmers, who favored the same habitat, viewed them as crop eating pests and shot them on sight. During the colonial period, hunters slaughtered thousands. Now, human efforts to save them may well prove futile. The Vietnamese herd is probably doomed, as too few remain to maintain the necessary genetic variation. Rhinos from Java cannot supplement the Vietnamese numbers because in the millions of years since Indonesia separated from the mainland, the two groups have evolved into separate sub-species. In Indonesia, the rhinos are protected on the Ujung Kulon peninsula, which is unsettled by humans, and still have sufficient genetic diversity to have a chance at survival. Ironically, however, the lack of human disturbance allows mature forests to replace the shrubby vegetation the animals prefer. Thus, human benevolence may prove little better for these rhinos than past human maltreatment.

Which of the following can be inferred from the passage?
a. Javan rhinos are one of the most endangered animals on the planet.
b. More is known about the genetics of the Javan rhino than is known about its mating patterns.
c. Hunters killed more Javan rhinos in Vietnam than in Indonesia.
d. Most animal extinctions are the result of human actions.
e. Genetic diversity is the most important factor for the survival of a species.
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Re: RC: Those Rhinos [#permalink] New post 27 Oct 2008, 11:34
D?
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Re: RC: Those Rhinos [#permalink] New post 27 Oct 2008, 12:58
bigfernhead wrote:
Measuring more than five feet tall and ten feet long, the Javan rhinoceros is often called the rarest large mammal on earth. None exist in zoos. Like the Indian rhino, the Javan has only one horn; African and Sumatran rhinos have two. While the Javan rhino habitat once extended across southern Asia, now there are fewer than one hundred of the animals in Indonesia and under a dozen in Vietnam. Very little is known about Javan rhinos because they lead secretive and solitary lives in remote jungles. Until recently, scientists debated whether females even have horns, and most scientific work has had to rely on DNA garnered from dung.

The near extinction of the Javan rhino is the direct result of human actions. For centuries, farmers, who favored the same habitat, viewed them as crop eating pests and shot them on sight. During the colonial period, hunters slaughtered thousands. Now, human efforts to save them may well prove futile. The Vietnamese herd is probably doomed, as too few remain to maintain the necessary genetic variation. Rhinos from Java cannot supplement the Vietnamese numbers because in the millions of years since Indonesia separated from the mainland, the two groups have evolved into separate sub-species. In Indonesia, the rhinos are protected on the Ujung Kulon peninsula, which is unsettled by humans, and still have sufficient genetic diversity to have a chance at survival. Ironically, however, the lack of human disturbance allows mature forests to replace the shrubby vegetation the animals prefer. Thus, human benevolence may prove little better for these rhinos than past human maltreatment.

Which of the following can be inferred from the passage?
a. Javan rhinos are one of the most endangered animals on the planet. Is most endangered == rarest??, yes
b. More is known about the genetics of the Javan rhino than is known about its mating patterns.
c. Hunters killed more Javan rhinos in Vietnam than in Indonesia.
Vietnam has fewer than a dozen and Indonesia has fewer than hundred. Passage says hunters slaughtered thousands. It is possible that they killed more in Vietnam than Indonesia or they were dead because of farmer's killing them
d. Most animal extinctions are the result of human actions. We know only about JR
e. Genetic diversity is the most important factor for the survival of a species.


Even though passage says genetic diversity is an important factor and can help survival in Indonesia, the word most does not make me feel comfortable and also it says species as opposed to JR.

A??.
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Re: RC: Those Rhinos [#permalink] New post 27 Oct 2008, 17:51
Is it B ?

definitely not C,D,E. I am torn between A and B. But isn't A too direct ? Am I thinking too much ?
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Re: RC: Those Rhinos [#permalink] New post 27 Oct 2008, 21:14
The passage says rhinos are "near extinction".
I'll go with (A).

Nothings has been told about mating pattern in the passage.
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Re: RC: Those Rhinos [#permalink] New post 28 Oct 2008, 05:19
The OA is B. (I chose A as well - this question irritated me. For a reader, I believe B is definitely is harder to infer than A)

Here's the OE from MGMAT -

The correct answer to this question will be a claim that must follow from text contained in the passage. This question does not provide any clues as to where the justifying text will be found.

(A) The first paragraph mentions that the the Javan rhino is the most endangered species of large mammal. However, it does not have to be true that it is one of the most endangered animals, a category that is far broader than mammals.

(B) CORRECT. The first paragraph states that very little is known about the life of the Javan rhino. The passage does indicate, however, that scientists have been able to extract information on the species’ DNA from gathered dung. The paragraph also suggests that very little information about female Javan rhinos has been gained, given that scientists only recently discovered whether or not females of the species even have horns. Thus, one can infer that more is known about the genetics of the Javan rhino than its mating patterns.

(C) The second paragraph indicates that hunters slaughtered many rhinos, but it does not mention where. Furthermore, it does not have to be true that more rhinos were killed in Vietnam simply because fewer rhinos remain there.

(D) The passage only discusses the Javan rhino; therefore, a generalization about the extinction of "most animals" is not supported by the passage.

(E) The passage does not mention other survival factors for a species or rank them; therefore, this inference is not supported by the passage.
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Re: RC: Those Rhinos [#permalink] New post 28 Oct 2008, 05:53
bigfernhead wrote:
Very little is known about Javan rhinos because they lead secretive and solitary lives in remote jungles. Until recently, scientists debated whether females even have horns, and most scientific work has had to rely on DNA garnered from dung.
b. More is known about the genetics of the Javan rhino than is known about its mating patterns.



If you read the lines in red we can infer "More is known about DNA/genetics of the Javan rhino than is known about ANYTHING ELSE RELATED TO JAVAN RHINO".

Choice B just substitutes "ANYTHING ELSE RELATED TO JAVAN RHINO" with "its mating patterns".
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Re: RC: Those Rhinos [#permalink] New post 28 Oct 2008, 07:53
I picked (A) as well.
According to me B is a stretch and is lame.
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Re: RC: Those Rhinos [#permalink] New post 28 Oct 2008, 08:12
Hehe. Couldn't have put it better :-)

leonidas wrote:
I picked (A) as well.
According to me B is a stretch and is lame.
Re: RC: Those Rhinos   [#permalink] 28 Oct 2008, 08:12
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