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# The blue-tipped puffer is a migratory bird that is found along the coa

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SVP
Joined: 12 Dec 2016
Posts: 1607
Location: United States
GMAT 1: 700 Q49 V33
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The blue-tipped puffer is a migratory bird that is found along the coa  [#permalink]

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11 Jan 2018, 13:40
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Difficulty:

65% (hard)

Question Stats:

59% (02:12) correct 41% (02:24) wrong based on 323 sessions

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https://gmatclub.com/forum/the-blue-tip ... 57799.html, this is the link of the old version of this question; expert Mike has retired the old question, and released the new version of the question. Here it is.

The blue-tipped puffer is a migratory bird that is found along the coast of this state in summer months. The puffers enjoy the seeds of Thomson's Mulberry trees; because these trees are plentiful in the state's Coastal Park, traditionally many blue-tipped puffers would be found in the park during summer months. Ten years ago, the grey fox, a primary predator of the puffer, was re-introduced into the park, and its numbers have been thriving. Over that time, we have seen many fewer puffers in the park during the summer months. Clearly, the puffers are choosing to spend their summers elsewhere.

Which of the following would be the most important to determine in order to evaluate the argument?

A What other birds and small mammals the grey fox typically hunts besides the blue-tipped puffers.
B Whether the grey fox eats the fruit of the Thomson's Mulberry trees.
C How the speed of a blue-tipped puffer during take-off from the ground compares to the speed of a grey fox running
D Whether the range of the grey fox within the park extends all the way to the coast.
E Whether other coastal areas in the state have seen an increase in the number of blue-tipped puffers over the last decade.

C,D, and E all sound plausible.
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Joined: 20 Feb 2017
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Re: The blue-tipped puffer is a migratory bird that is found along the coa  [#permalink]

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11 Jan 2018, 17:56
chesstitans wrote:
https://gmatclub.com/forum/the-blue-tipped-puffer-is-a-migratory-bird-that-is-found-157799.html, this is the link of the old version of this question; expert Mike has retired the old question, and released the new version of the question. Here it is.

The blue-tipped puffer is a migratory bird that is found along the coast of this state in summer months. The puffers enjoy the seeds of Thomson's Mulberry trees; because these trees are plentiful in the state's Coastal Park, traditionally many blue-tipped puffers would be found in the park during summer months. Ten years ago, the grey fox, a primary predator of the puffer, was re-introduced into the park, and its numbers have been thriving. Over that time, we have seen many fewer puffers in the park during the summer months. Clearly, the puffers are choosing to spend their summers elsewhere.

Which of the following would be the most important to determine in order to evaluate the argument?

A What other birds and small mammals the grey fox typically hunts besides the blue-tipped puffers.
B Whether the grey fox eats the fruit of the Thomson's Mulberry trees.
C How the speed of a blue-tipped puffer during take-off from the ground compares to the speed of a grey fox running
D Whether the range of the grey fox within the park extends all the way to the coast.E
E Whether other coastal areas in the state have seen an increase in the number of blue-tipped puffers over the last decade.

C,D, and E all sound plausible.

Stem - puffers are spending summer elsewhere after the introduction of grey fox.

A - Irrelevant
B - Need additional information to use this option With given info - Irrelevant
C - This information may prove whether Fox can kill puffers but it doesn't tell you if puffers are spending time elsewhere.
D - Very similar to C
E - Correct answer. If other areas have seen an increase, support the stem. Best option even though there may be other reasons driving increase.
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Re: The blue-tipped puffer is a migratory bird that is found along the coa  [#permalink]

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11 Jan 2018, 18:09
The point is that the number of puffer itself should not decrease.

E can support (although it is little bit vague)this hidden assumption.
Senior Manager
Joined: 07 Dec 2017
Posts: 301
Re: The blue-tipped puffer is a migratory bird that is found along the coa  [#permalink]

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11 Jan 2018, 19:09
E, we have to evaluate this argument by keeping the conclusion in mind that is "puffr choose to spend their summer elsewhere"

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Intern
Joined: 11 Jun 2017
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Re: The blue-tipped puffer is a migratory bird that is found along the coa  [#permalink]

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14 Jan 2018, 07:45
B - Need additional information to use this option With given info - Irrelevant

As in may be birds are not anymore found because all the fruits are eaten by the foxes.
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Re: The blue-tipped puffer is a migratory bird that is found along the coa  [#permalink]

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14 Jan 2018, 08:30
1
reach_richa wrote:
B - Need additional information to use this option With given info - Irrelevant

As in may be birds are not anymore found because all the fruits are eaten by the foxes.

Stem says -
The blue-tipped puffer is a migratory bird that is found along the coast of this state in summer months. The puffers enjoy the seeds of Thomson's Mulberry trees; because these trees are plentiful in the state's Coastal Park, traditionally many blue-tipped puffers would be found in the park during summer months.

As per stem, Puffers enjoy the seeds not that seeds are the sole reason for migration.
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Re: The blue-tipped puffer is a migratory bird that is found along the coa  [#permalink]

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18 Mar 2018, 21:57
lostin wrote:
reach_richa wrote:
B - Need additional information to use this option With given info - Irrelevant

As in may be birds are not anymore found because all the fruits are eaten by the foxes.

Stem says -
The blue-tipped puffer is a migratory bird that is found along the coast of this state in summer months. The puffers enjoy the seeds of Thomson's Mulberry trees; because these trees are plentiful in the state's Coastal Park, traditionally many blue-tipped puffers would be found in the park during summer months.

As per stem, Puffers enjoy the seeds not that seeds are the sole reason for migration.

Hi I ALSO CHOSE B.
Even if they enjoy the seeds and lets say the fruits are eaten by the foxes then they wont be able to enjoy the seeds and the conclusion fails.
correct me where I am wrong.
Re: The blue-tipped puffer is a migratory bird that is found along the coa &nbs [#permalink] 18 Mar 2018, 21:57
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