It is currently 20 Oct 2017, 07:33

### GMAT Club Daily Prep

#### Thank you for using the timer - this advanced tool can estimate your performance and suggest more practice questions. We have subscribed you to Daily Prep Questions via email.

Customized
for You

we will pick new questions that match your level based on your Timer History

Track
Your Progress

every week, we’ll send you an estimated GMAT score based on your performance

Practice
Pays

we will pick new questions that match your level based on your Timer History

# Events & Promotions

###### Events & Promotions in June
Open Detailed Calendar

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

 new topic post reply Question banks Downloads My Bookmarks Reviews Important topics
Author Message
Director
Joined: 17 Oct 2005
Posts: 924

Kudos [?]: 267 [0], given: 0

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

### Show Tags

21 Nov 2005, 17:34
00:00

Difficulty:

(N/A)

Question Stats:

0% (00:00) correct 0% (00:00) wrong based on 0 sessions

### HideShow timer Statistics

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.

Kudos [?]: 267 [0], given: 0

Director
Joined: 17 Oct 2005
Posts: 924

Kudos [?]: 267 [0], given: 0

### Show Tags

21 Nov 2005, 17:38
Here is my line of reasoning.

C-growing mushrooms beneath tree endangers tree
E-cuz they have a beneficial relationship (although i dont know why it would be dangerous if it were benificial for the tree)

A-OS
B-OS
C-OS
D-OS

I chose E cuz if the tree would die without the mushroom then the mushroom would not endanger the tree but it would help it.

Kudos [?]: 267 [0], given: 0

Intern
Joined: 24 Oct 2005
Posts: 3

Kudos [?]: [0], given: 0

### Show Tags

21 Nov 2005, 18:15
my answer is D

Kudos [?]: [0], given: 0

Director
Joined: 17 Oct 2005
Posts: 924

Kudos [?]: 267 [0], given: 0

### Show Tags

21 Nov 2005, 18:18
can you explain your reasoning juh? thanks

Kudos [?]: 267 [0], given: 0

GMAT Club Legend
Joined: 07 Jul 2004
Posts: 5034

Kudos [?]: 438 [0], given: 0

Location: Singapore

### Show Tags

21 Nov 2005, 19:58
D is the best choice. If harvesting the mushrooms will stimulate further growth, then the douglas fir won't be harmed by the harvest.

Kudos [?]: 438 [0], given: 0

Director
Joined: 17 Oct 2005
Posts: 924

Kudos [?]: 267 [0], given: 0

### Show Tags

22 Nov 2005, 00:43
why would growing the mushroom under the fir endanger the tree? cuz it takes away sugar? I dont understand.

Kudos [?]: 267 [0], given: 0

SVP
Joined: 28 May 2005
Posts: 1700

Kudos [?]: 473 [0], given: 0

Location: Dhaka

### Show Tags

22 Nov 2005, 03:17
It is a clear E for me.

If young Douglas fir seedlings die without the nutrients and water provided by chanterelle filaments, Harvesting chanterelle can not seriously endenger the tree.
_________________

hey ya......

Kudos [?]: 473 [0], given: 0

Senior Manager
Joined: 29 Aug 2005
Posts: 498

Kudos [?]: 14 [0], given: 0

### Show Tags

22 Nov 2005, 03:43
Conclusion - Harvesting the chanterelles growing beneath a Douglas fir seriously endangers the tree

A - Incorrect. Does not matter if it has increased or decreased. Out of Scope.
B - Incorrect. Out of Scope.
C - Incorrect. Out of Scope.
D - Correct. Casts the doubt that if by cutting the growth is simulated it makes sense to harvest it.
E - Incorrect. Out of scope.

Hence D is correct as it casts the doubt and weakens the conclusion.

Kudos [?]: 14 [0], given: 0

VP
Joined: 07 Nov 2005
Posts: 1115

Kudos [?]: 52 [0], given: 1

Location: India

### Show Tags

22 Nov 2005, 05:30
Don't know for sure but I think it should to be E....

Kudos [?]: 52 [0], given: 1

Director
Joined: 14 Sep 2005
Posts: 984

Kudos [?]: 215 [0], given: 0

Location: South Korea

### Show Tags

22 Nov 2005, 07:00
IMO, E strengthens the argument.

D is the best answer.

The argument says that removing chanterelles will endanger the Douglas fir.

(D) says that removing the chanterelles will let more chanterelles to grow.
(E) says that removing the chanterelles will kill the seeds of the Douglas fir.
_________________

Auge um Auge, Zahn um Zahn !

Kudos [?]: 215 [0], given: 0

Current Student
Joined: 29 Jan 2005
Posts: 5206

Kudos [?]: 434 [0], given: 0

### Show Tags

22 Nov 2005, 09:48
E strengthens the conclusion. We are asked to weaken, hence D. Harvesting those delicate shrooms will undoubtedly promote greater future growth and improve the symbiotic relationship with the Douglas Fir.

(D)

Kudos [?]: 434 [0], given: 0

Director
Joined: 17 Oct 2005
Posts: 924

Kudos [?]: 267 [0], given: 0

### Show Tags

22 Nov 2005, 10:40
the conclusion says that harvesting mushrooms under the tree endagers the tree becasue of the symbiotic relationship.

So if there are more mushrooms, there would be more of a symbiotic relationship.

Wouldnt that support the argument?

Kudos [?]: 267 [0], given: 0

Current Student
Joined: 29 Jan 2005
Posts: 5206

Kudos [?]: 434 [0], given: 0

### Show Tags

22 Nov 2005, 10:55
Stimulates does not equal endanger. I will stick with D as it contradicts the conclusion.

Kudos [?]: 434 [0], given: 0

Director
Joined: 17 Oct 2005
Posts: 924

Kudos [?]: 267 [0], given: 0

### Show Tags

22 Nov 2005, 11:18
ahh, makes sense now, i was confused by the definition of Harvest

Kudos [?]: 267 [0], given: 0

Director
Joined: 17 Oct 2005
Posts: 924

Kudos [?]: 267 [0], given: 0

### Show Tags

22 Nov 2005, 11:20
and the answer is D

Kudos [?]: 267 [0], given: 0

SVP
Joined: 03 Jan 2005
Posts: 2231

Kudos [?]: 377 [0], given: 0

Re: CR Mushrooms [#permalink]

### Show Tags

22 Nov 2005, 11:26
Fact: Mushroom provides water and nutrients to the tree under which it grows.
Conclusion: Havesting mushrooms grow under the tree endangers the tree.

Ask for weekening.

(A) The number of wild mushrooms harvested has increased in recent years.
Perhaps a lot of trees are already endangered. Can't weaken.

(B) Chanterelles grow not only beneath Douglas firs but also beneath other host trees.
We are talking about mushroom under the tree. Other mushrooms are irrelevant.

(C) Many types of wild mushrooms are found only in forests and cannot easily be grown elsewhere.
So? Havesting them can still hurt trees.

(D) The harvesting of wild mushrooms stimulates future growth of those mushrooms.
If harvesting actually stimulates growth, then it is a good thing for the trees for they would get even more water and nutrientients. Weaken the conclusion.

(E) Young Douglas fir seedlings die without the nutrients and water provided by chanterelle filaments.
This strengthens the conclusion that havesting mushroom harms the trees.

So D.
_________________

Keep on asking, and it will be given you;
keep on seeking, and you will find;
keep on knocking, and it will be opened to you.

Kudos [?]: 377 [0], given: 0

SVP
Joined: 28 May 2005
Posts: 1700

Kudos [?]: 473 [0], given: 0

Location: Dhaka
Re: CR Mushrooms [#permalink]

### Show Tags

22 Nov 2005, 14:28
HongHu wrote:
Fact: Mushroom provides water and nutrients to the tree under which it grows.
Conclusion: Havesting mushrooms grow under the tree endangers the tree.

Ask for weekening.

(E) Young Douglas fir seedlings die without the nutrients and water provided by chanterelle filaments.
This strengthens the conclusion that havesting mushroom harms the trees.

So D.

How does that strengthen the conclusion. It says with mushrom chaterelle filaments providing nutrients and water, young douglas fir seedlings die. so harvesting musrooms does not endager the trees.

so E should be the correct choice.
_________________

hey ya......

Kudos [?]: 473 [0], given: 0

Director
Joined: 17 Oct 2005
Posts: 924

Kudos [?]: 267 [0], given: 0

Re: CR Mushrooms [#permalink]

### Show Tags

22 Nov 2005, 14:40
joemama142000 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.

C-havesting(picking crops) or taking away the mushrooms will endanger the tree because they depend on each other.

If tree dies without mushrooms, then taking away the mushrooms will endanger the tree. Therefore, E strengthens the argument.

D weakens the argument by saying if you take away mushrooms, more mushrooms will grow under the tree, making it better for the tree. Therefore, taking awy the mushrooms will not endanger the tree. Thus it is correct.

Kudos [?]: 267 [0], given: 0

Re: CR Mushrooms   [#permalink] 22 Nov 2005, 14:40
Display posts from previous: Sort by

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

 new topic post reply Question banks Downloads My Bookmarks Reviews Important topics

 Powered by phpBB © phpBB Group | Emoji artwork provided by EmojiOne Kindly note that the GMAT® test is a registered trademark of the Graduate Management Admission Council®, and this site has neither been reviewed nor endorsed by GMAC®.