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When a large bird, the dodo, still inhabited the island of M

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When a large bird, the dodo, still inhabited the island of M [#permalink] New post 28 Jul 2019, 10:51
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When a large bird, the dodo, still inhabited the island of Mauritius, one of its favorite foods was the fruit of a particular species of tree. After the dodo became extinct, new fruit trees of that species ceased to sprout on the island.

Which of the following, if true, would most help to account for the phenomenon described above?

(A) The dodo ate a variety of other fruits as well; trees producing these other fruits continued to flourish after the dodo's extinction.
(B) Although other birds also ate the tree's fruit, the dodo was the largest and thus required the greatest quantities of fruit.
(C) When the fruit of the tree was not eaten, it gradually decayed, and the seeds within the fruit were deposited in soil.
(D) The dodo's digestive processes softened the seeds of the tree's fruit before the dodo excreted the seeds; the seeds germinate only after being thus softened.
(E) The dodo tended to live where the tree's fruit was plentiful; it was in these areas that new fruit trees of that species sprouted before the dodo's extinction.
[Reveal] Spoiler: OA

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Re: When a large bird, the dodo, still inhabited the island of M [#permalink] New post 29 Jul 2019, 16:20
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Carcass wrote:
When a large bird, the dodo, still inhabited the island of Mauritius, one of its favorite foods was the fruit of a particular species of tree. After the dodo became extinct, new fruit trees of that species ceased to sprout on the island.

Which of the following, if true, would most help to account for the phenomenon described above?

(A) The dodo ate a variety of other fruits as well; trees producing these other fruits continued to flourish after the dodo's extinction.
(B) Although other birds also ate the tree's fruit, the dodo was the largest and thus required the greatest quantities of fruit.
(C) When the fruit of the tree was not eaten, it gradually decayed, and the seeds within the fruit were deposited in soil.
(D) The dodo's digestive processes softened the seeds of the tree's fruit before the dodo excreted the seeds; the seeds germinate only after being thus softened.
(E) The dodo tended to live where the tree's fruit was plentiful; it was in these areas that new fruit trees of that species sprouted before the dodo's extinction.

For logical reasoning style reading comprehension questions, first identify the question task, which in this case is to account for the phenomenon.

Then, identify the phenomenon, in this case that after the dodo became extinct new fruit trees of that particular species ceased to sprout on the island.

Next, work through the choices looking for reasons to eliminate while considering the impact of the new information on the phenomenon.

(A) That the trees that produced other fruits continued to flourish after the dodo's extinction makes the phenomenon less understandable, so eliminate Choice A as a reversal.
(B) That the dodo required the greatest quantities of the fruit would have no impact on the fruit tree going extinct along with the dodo, so eliminate Choice B for having no impact on the phenomenon.
(C) That uneaten fruit deposited seeds in the soil makes the phenomenon less understandable, so eliminate Choice C as a reversal.
(D) That the dodo's digestive processes softened the fruit and the seeds only germinate after the softening explains why the tree might go extinct without the bird, so keep Choice D as a possible explanation of the phenomenon.
(E) Where the dodo tended to live prior to extinction is too vague to have a clear impact on the trees, so eliminate Choice E for having no impact on the phenomenon.

Select Choice D for providing information that explains the phenomenon that after the dodo became extinct new fruit trees of that particular species ceased to sprout on the island.
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Re: When a large bird, the dodo, still inhabited the island of M   [#permalink] 29 Jul 2019, 16:20
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When a large bird, the dodo, still inhabited the island of M

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