A certain cultivated herb is one of a group of closely

Oldest

Best Reply

Author

Message

TAGS:

Director

Joined: 24 Aug 2006

Posts: 758

Location: Dallas, Texas

Followers: 3

Kudos [?]: 9 [0], given: 0

[#permalink]

19 Dec 2006, 18:30

OA=D
_________________

"Education is what remains when one has forgotten everything he learned in school."

Joined: 14 May 2006

Posts: 1421

Followers: 4

Kudos [?]: 22 [0], given: 0

[#permalink]

19 Dec 2006, 18:36

Swagatalakshmi wrote:

OA=D

awesome

Intern

Joined: 06 Aug 2006

Posts: 21

Followers: 0

Kudos [?]: 2 [0], given: 2

[#permalink]

19 Dec 2006, 19:46

Wohooooooo!!!!!!!

Swagatalakshmi wrote:

OA=D

SVP

Joined: 08 Nov 2006

Posts: 1560

Location: Ann Arbor

Schools: Ross '10

Followers: 12

Kudos [?]: 155 [0], given: 1

[#permalink]

19 Dec 2006, 21:04

loki wrote:

Wohooooooo!!!!!!!

Swagatalakshmi wrote:

OA=D

For the life of me, I cannot understand how D is a better choice than C. May I know the source of this question.

What book or test is this Q from?
_________________

My Profile/GMAT/MBA Story
http://www.gmatclub.com/forum/111-t59345

Find out what's new at GMAT Club - latest features and updates

SVP

Joined: 03 Jan 2005

Posts: 2322

Followers: 9

Kudos [?]: 157 [0], given: 0

[#permalink]

21 Dec 2006, 11:15

I can see why I have erred, actually. It is true that A (histidine) may or may not lead to B (neutralized soil), but if we have B we know that A must have happened. In other words, if it is true that the soil is neutralized then the hypothesis of histidine makes the soil less hostile to the plant would be supported.

Compare to C we would be able to establish association between plants that produce histidine and plants that survive metal soil, but we would still not be able to say that it is a causal relationship.
_________________

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.

Senior Manager

Joined: 24 Nov 2006

Posts: 353

Followers: 1

Kudos [?]: 8 [0], given: 0

[#permalink]

01 Jan 2007, 19:04

AimHigher wrote:

I am with D

Growing the herb makes the metals in the soil inert.

Hence makes the land favorable for other plants

Exactly. One more for D.

SVP

Joined: 16 Jul 2009

Posts: 1635

Schools: CBS

WE 1: 4 years (Consulting)

Followers: 25

Kudos [?]: 119 [0], given: 2

Re: CR: Herbs [#permalink]

07 Jan 2011, 08:52

I completely agree with you.

HongHu wrote:

Swagatalakshmi wrote:

A certain cultivated herb is one of a group of closely related plants that thrive in soil withhigh concentrations of metals that are toxic to most other plants. Agronomists studyingthe herb have discovered that it produces large amounts of histidine, an amino acid that, in test-tube solutions, renders these metals chemically inert. Possibly, therefore, theherbâ€™s high histidine production is what allows it to grow in metal-rich soils, a hypothesisthat would gain support if ______.

Fact: HerbA thrive in soil with metals.
Fact: A group of closely related plants thrive in soil with metals.
Fact: HerbA produces histidine, which makes metals harmless to plant.
Hypothesis: Histidine is the reason why HerbA thrive in soil with metals.

If we know that those closely related plants that thrive in metal soil all produce histidine, then we could be reasonably sure that histidine is the reason why they thrive in metal soil.

I would choose C.

I don't think we can necessarily get better soils after planting herbA for some time. The passage didn't talk about where the chemical reaction takes place (inside the plant or in the soil), nor did it talk about whether its effect will last so that it actually changes the soil.

_________________

The sky is the limit
800 is the limit

Find out what's new at GMAT Club - latest features and updates

Re: CR: Herbs [#permalink] 07 Jan 2011, 08:52

		Similar topics	Author	Replies	Last post
Similar Topics:		CR:Certain Herb	IWT801	3	10 Dec 2005, 20:33
		A neighborhood group plans to protest the closing of the	Mishari	8	05 May 2007, 01:04
		A certain cultivated herb is one of a group of closely	prasannar	1	16 Mar 2008, 08:32
		A certain cultivated herb is one of a group of closely	arorag	18	28 Sep 2008, 17:54
	9	A certain cultivated herb is one of a group of closely	gurpreet07	26	15 Sep 2009, 09:48

Main navigation

GMAT Resources

Partners

MBA Resources

GMAT ® is a registered trademark of the Graduate Management Admission Council ® (GMAC ®). GMAT Club's website has not been reviewed or endorsed by GMAC.

GMAT Courses

Admissions Consulting

A certain cultivated herb is one of a group of closely

A certain cultivated herb is one of a group of closely

Main navigation

GMAT Resources

Partners

MBA Resources