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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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28 Mar 2004, 14:32
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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 nutually beneficial relationship, harvesting the chanterelles growing beneath a Douglas fir seriously endanters the tree.

Wich 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 chanterell filaments.

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Manager
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28 Mar 2004, 15:21
E is the answer in my opinion, ooops didnt read the Question correctly. D is the answer
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28 Mar 2004, 16:11
D stregthens, whereas E undercuts the argument.

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SVP
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28 Mar 2004, 17:09
E is talking about seedlings and not the trees. E does not weaken the argument at all.

D is the best bet because if a trees die then wild mushroom will also die and there will be no further growth of other mushrooms. In order for stimulation of further growth of mushrooms to occur the tree should live as well.

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28 Mar 2004, 20:50
Could I say otherwise than D?
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Paul

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29 Mar 2004, 06:06
Official answer is D but I am still not convinced about it. It does not talk about any relationship between wild mushroom and the tree. The harvesting of wild mushrooms could be happening away from the tree or am I reading it wrong?

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29 Mar 2004, 06:48
Hmm,

Interesting point. I thought that the harvesting is done at the root of those trees. The other explanation could be that if the seedlings are taken away from the trees and harvested somewhere else then the trees could die if it is true that no further growth of mushrooms occurs at the roots of those trees.

But I cannot defend my answer very well.

I wish Paul and others could trow some light on this.

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29 Mar 2004, 08:10
asagem99 wrote:
Official answer is D but I am still not convinced about it. It does not talk about any relationship between wild mushroom and the tree. The harvesting of wild mushrooms could be happening away from the tree or am I reading it wrong?

Wild mushrooms do grow beneath trees such as the Douglas fir. We then have to assume that the harvesting part is done beneath those trees given the information provided to us. I don't see how the sentence could be talking about the location where the mushroom grows and then insinuate about other locations where such mushrooms could be harvested. D is the only answer that directly attacks the argument and weakens it. Furthermore, all other answers are either unlerated (A, B, C)or strenghten the argument (E) that such mushrooms should not be harvested
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# The chanterelle, a type of wild mushroom, grows beneath host

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