The chanterelle, a type of wild mushroom, grows beneath host : GMAT Critical Reasoning (CR)
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# The chanterelle, a type of wild mushroom, grows beneath host

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The chanterelle, a type of wild mushroom, grows beneath host [#permalink]

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20 Feb 2009, 17:21
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The chanterelle, a type of wild mushroom, grows beneath host trees such as the Douglas fir, which provide it with necessary sugars. The underground filaments of chanterelles, which extract the sugars, in turn provide nutrients and water for their hosts. Because of this mutually beneficial relationship, harvesting the chanterelles growing beneath a Douglas fir seriously endangers the tree.

Which of the following, if true, casts the most doubt on the conclusion drawn above?

(A) The number of wild mushrooms harvested has increased in recent years.
(B) Chanterelles grow not only beneath Douglas firs but also beneath other host trees.
(C) Many types of wild mushrooms are found only in forests and cannot easily be grown elsewhere.
(D) The harvesting of wild mushrooms stimulates future growth of those mushrooms.
(E) Young Douglas fir seedlings die without the nutrients and water provided by chanterelle filaments.
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Re: CR: The chanterelle [#permalink]

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20 Feb 2009, 17:26
reply2spg wrote:
The chanterelle, a type of wild mushroom, grows beneath host trees such as the Douglas fir, which provide it with necessary sugars. The underground filaments of chanterelles, which extract the sugars, in turn provide nutrients and water for their hosts. Because of this mutually beneficial relationship, harvesting the chanterelles growing beneath a Douglas fir seriously endangers the tree.

Which of the following, if true, casts the most doubt on the conclusion drawn above?

(A) The number of wild mushrooms harvested has increased in recent years.
(B) Chanterelles grow not only beneath Douglas firs but also beneath other host trees.
(C) Many types of wild mushrooms are found only in forests and cannot easily be grown elsewhere.
(D) The harvesting of wild mushrooms stimulates future growth of those mushrooms.
(E) Young Douglas fir seedlings die without the nutrients and water provided by chanterelle filaments.

D, If harvesting creates more WM, it does not endanger the DF.
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Re: CR: The chanterelle [#permalink]

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21 Feb 2009, 02:13
D makes the most sensible choice
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Re: CR: The chanterelle [#permalink]

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21 Feb 2009, 13:43
I would also go for D
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22 Feb 2009, 15:06
why E is wrong here? it directly weakens the conclusion, isn't it?
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Re: CR: The chanterelle [#permalink]

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22 Feb 2009, 21:18
D, no doubt.
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Re: CR: The chanterelle [#permalink]

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25 Mar 2009, 11:36
I got Trapped in this Q

Can you guys explain why its not E?
11-t56808?view=next
gives good explanations

Source:Paper test no 31
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Re: CR: The chanterelle [#permalink]

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25 Mar 2009, 14:43
I think E is the answer
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Re: CR: The chanterelle [#permalink]

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27 Oct 2009, 02:42
I go for D
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Re: CR: The chanterelle [#permalink]

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27 Oct 2009, 02:45
nitya34 wrote:
I got Trapped in this Q

Can you guys explain why its not E?
11-t56808?view=next
gives good explanations

Source:Paper test no 31

E support the argument, not weaken because E says that young host trees can not survive without chanterelle
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Re: CR: The chanterelle [#permalink]

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27 Oct 2009, 11:06
clear D
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31 Mar 2010, 16:42
Like me, who got "E" must have got confused by the meaning of Harvesting.
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Re: CR: The chanterelle [#permalink]

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01 Apr 2010, 10:22
IMO E

what is OA?
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Re: CR: The chanterelle [#permalink]

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05 Apr 2010, 01:09
D
because if harvesting stimulates the growth of mushrooms, it would mean more water and nutrients for the trees.

Not E because it strengthens the argument to a good extent, but it is also a general statement implied in argument.
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Re: CR: The chanterelle [#permalink]

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05 Apr 2010, 18:10
E it is
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Re: CR: The chanterelle [#permalink]

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05 Apr 2010, 18:24
This becomes simple if you understand the meaning of Choice D .

I misunderstood it as : harvesting those mushroom from the tree and planting it elsewhere would increase the future growth of mushrooms.
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Re: The chanterelle, a type of wild mushroom, grows beneath host [#permalink]

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01 Jan 2014, 16:56
reply2spg wrote:
The chanterelle, a type of wild mushroom, grows beneath host trees such as the Douglas fir, which provide it with necessary sugars. The underground filaments of chanterelles, which extract the sugars, in turn provide nutrients and water for their hosts. Because of this mutually beneficial relationship, harvesting the chanterelles growing beneath a Douglas fir seriously endangers the tree.

Which of the following, if true, casts the most doubt on the conclusion drawn above?

(A) The number of wild mushrooms harvested has increased in recent years.
(B) Chanterelles grow not only beneath Douglas firs but also beneath other host trees.
(C) Many types of wild mushrooms are found only in forests and cannot easily be grown elsewhere.
(D) The harvesting of wild mushrooms stimulates future growth of those mushrooms.
(E) Young Douglas fir seedlings die without the nutrients and water provided by chanterelle filaments.

So we have consensus? Is it D then?

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Re: The chanterelle, a type of wild mushroom, grows beneath host [#permalink]

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01 Jan 2014, 17:49
IMO E.
Conclusion: growing mushroom endangers the tree.
Weakener: growing mushroom does not endanger the tree, it actually supports the growth.

(D) The harvesting of wild mushrooms stimulates future growth of those mushrooms. - stimulates future growth -> per the premise and conclusion more mushrooms more it is going to endanger the host. its a strengthener.

(E) Young Douglas fir seedlings die without the nutrients and water provided by chanterelle filaments. this choice says, its not endangering but actually supporting the growth of the host.

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Re: The chanterelle, a type of wild mushroom, grows beneath host [#permalink]

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01 Jan 2014, 18:12
reply2spg wrote:
The chanterelle, a type of wild mushroom, grows beneath host trees such as the Douglas fir, which provide it with necessary sugars. The underground filaments of chanterelles, which extract the sugars, in turn provide nutrients and water for their hosts. Because of this mutually beneficial relationship, harvesting the chanterelles growing beneath a Douglas fir seriously endangers the tree.

Which of the following, if true, casts the most doubt on the conclusion drawn above?

(A) The number of wild mushrooms harvested has increased in recent years.
(B) Chanterelles grow not only beneath Douglas firs but also beneath other host trees.
(C) Many types of wild mushrooms are found only in forests and cannot easily be grown elsewhere.
(D) The harvesting of wild mushrooms stimulates future growth of those mushrooms.
(E) Young Douglas fir seedlings die without the nutrients and water provided by chanterelle filaments.

Negate the conclusion: Harvesting the chanterelles does not endanger the tree

Now since this is a weaken question, pick the choice that offers the best explanation for the above negated conclusion

Choice D does because it says that the harvesting actually makes the mushroom grow and so the tree would not be endangered.

Choice E does not offer an explanation for the negated conclusion.
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Re: The chanterelle, a type of wild mushroom, grows beneath host [#permalink]

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01 Jan 2014, 18:33
ITS IMPORTANT TO UNDERSTAND THE MEANING OF THE SENTENCES AND WHAT IS BEING IMPLIED........
AT A SECOND THOUGHT........" D " IS THE CORRECT ANSWER..........

CONCLUSION- harvesting the chanterelles growing beneath a Douglas fir seriously endangers the tree.

The chanterelle, a type of wild mushroom, grows beneath host trees such as the Douglas fir, which provide it with necessary sugars. The underground filaments of chanterelles, which extract the sugars, in turn provide nutrients and water for their hosts. Because of this mutually beneficial relationship, harvesting the chanterelles growing beneath a Douglas fir seriously endangers the tree.

(D) The harvesting of wild mushrooms stimulates future growth of those mushrooms. SO EVEN IF YOU HARVEST NEW MUSHROOM COMES UP.......WHICH IS BENEFICIAL FOR THE TREE.....SO OVER ALL " chanterelles growing beneath a Douglas fir DOES NOT seriously endanger the tree. CORRECT ANSWER....
(E) Young Douglas fir seedlings die without the nutrients and water provided by chanterelle filaments.......STRENGTHENER ....AS,,," harvesting the chanterelles growing beneath a Douglas fir seriously endangers the tree.

Last edited by semwal on 03 Jan 2014, 03:32, edited 2 times in total.
Re: The chanterelle, a type of wild mushroom, grows beneath host   [#permalink] 01 Jan 2014, 18:33

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