Find all School-related info fast with the new School-Specific MBA Forum

It is currently 20 Aug 2014, 03:15

Close

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

Not interested in getting valuable practice questions and articles delivered to your email? No problem, unsubscribe here.

Events & Promotions

Events & Promotions in June
Open Detailed Calendar

Lyme disease is caused by a bacterium transmitted to humans

  Question banks Downloads My Bookmarks Reviews Important topics  
Author Message
TAGS:
1 KUDOS received
Senior Manager
Senior Manager
avatar
Joined: 22 Dec 2011
Posts: 299
Followers: 3

Kudos [?]: 87 [1] , given: 32

GMAT Tests User
Lyme disease is caused by a bacterium transmitted to humans [#permalink] New post 13 Nov 2012, 01:36
1
This post received
KUDOS
00:00
A
B
C
D
E

Difficulty:

(N/A)

Question Stats:

50% (02:56) correct 50% (01:22) wrong based on 27 sessions
Lyme disease is caused by a bacterium transmitted to humans by deer ticks. Generally
deer ticks pick up the bacterium while in the larval stage from feeding on infected whitefooted mice. However, certain other species on which the larvae feed do not harbor the bacterium. Therefore, if the population of these other species were increased, the number of ticks acquiring the bacterium and hence the number of people contracting Lyme disease—would likely decline.

Which of the following, if true, most strengthens the argument?

A. Ticks do not suffer any adverse consequences from carrying the bacterium that
causes Lyme disease in humans.
B. There are no known cases of a human’s contracting Lyme disease through contact
with white-footed mice.
C. A deer tick feeds only once while in the larval stage.
D. A single host animal can be the source of bacteria for many tick larvae.
E. None of the other species on which deer tick larvae feed harbor other bacteria that
ticks transmit to humans.

Good Q that I came across in GMAT PREP. sharing it with you guys. Happy learning ;D
[Reveal] Spoiler:
OA C

Cheers

Last edited by Jp27 on 13 Nov 2012, 02:28, edited 1 time in total.
Kaplan Promo CodeKnewton GMAT Discount CodesVeritas Prep GMAT Discount Codes
Director
Director
User avatar
Status: Done with formalities.. and back..
Joined: 15 Sep 2012
Posts: 646
Location: India
Concentration: Strategy, General Management
Schools: Olin - Wash U - Class of 2015
WE: Information Technology (Computer Software)
Followers: 35

Kudos [?]: 353 [0], given: 23

GMAT ToolKit User Premium Member
Re: Lyme disease is caused by a bacterium... [#permalink] New post 13 Nov 2012, 01:51
Jp27 wrote:
Lyme disease is caused by a bacterium transmitted to humans by deer ticks. Generally
deer ticks pick up the bacterium while in the larval stage from feeding on infected whitefooted mice. However, certain other species on which the larvae feed do not harbor the bacterium. Therefore, if the population of these other species were increased, the number of ticks acquiring the bacterium and hence the number of people contracting Lyme disease—would likely decline.

Which of the following, if true, most strengthens the argument?

A. Ticks do not suffer any adverse consequences from carrying the bacterium that
causes Lyme disease in humans.
B. There are no known cases of a human’s contracting Lyme disease through contact
with white-footed mice.
C. A deer tick feeds only once while in the larval stage.
D. A single host animal can be the source of bacteria for many tick larvae.
E. None of the other species on which deer tick larvae feed harbor other bacteria that
ticks transmit to humans.

Good Q that I came across in GMAT PREP. sharing it with you guys. Happy learning ;D
OA after some discussion.

Cheers

Yeah good question. There is another more difficult version of same question (evaluate argument) ,which derailed me completely (took 6 mins to ans -and incorrectly :P).

For this one - argument is : if the population of these other species were increased, the number of ticks acquiring the bacterium and hence the number of people contracting Lyme disease—would likely decline
This is strengthened if we can show that by increasing number of these species would help in less people contracting lyme

Choice C gives a case - if the deer tick feeds only once in larval stage (which is the stage when it picks up bacterium) and feeds on 'other species' which are not infected, clealy it will not pick bacterium and fewer people would contract lyme (people contract only from deer picks).

Ans C it is.
_________________

Lets Kudos!!! ;-)
Black Friday Debrief

Expert Post
Verbal Forum Moderator
Verbal Forum Moderator
User avatar
Status: Preparing for the another shot...!
Joined: 03 Feb 2011
Posts: 1425
Location: India
Concentration: Finance, Marketing
GPA: 3.75
Followers: 127

Kudos [?]: 589 [0], given: 62

GMAT ToolKit User GMAT Tests User Premium Member
Re: Lyme disease is caused by a bacterium... [#permalink] New post 13 Nov 2012, 02:17
Expert's post
Jp27 wrote:
Lyme disease is caused by a bacterium transmitted to humans by deer ticks. Generally
deer ticks pick up the bacterium while in the larval stage from feeding on infected whitefooted mice. However, certain other species on which the larvae feed do not harbor the bacterium. Therefore, if the population of these other species were increased, the number of ticks acquiring the bacterium and hence the number of people contracting Lyme disease—would likely decline.

Which of the following, if true, most strengthens the argument?

A. Ticks do not suffer any adverse consequences from carrying the bacterium that
causes Lyme disease in humans.
B. There are no known cases of a human’s contracting Lyme disease through contact
with white-footed mice.
C. A deer tick feeds only once while in the larval stage.
D. A single host animal can be the source of bacteria for many tick larvae.
E. None of the other species on which deer tick larvae feed harbor other bacteria that
ticks transmit to humans.

Good Q that I came across in GMAT PREP. sharing it with you guys. Happy learning ;D
OA after some discussion.

Cheers


IMO it is C.
Initially went with B but after reading vips explanation, I am with C.
My reason:- If you increase the total number of species and if the larvae feeds only once, then the combined probability of feeding on whitefooted mice will decrease.
_________________

Prepositional Phrases Clarified|Elimination of BEING| Absolute Phrases Clarified
Rules For Posting
www.Univ-Scholarships.com

Expert Post
1 KUDOS received
Veritas Prep GMAT Instructor
User avatar
Joined: 16 Oct 2010
Posts: 4664
Location: Pune, India
Followers: 1070

Kudos [?]: 4771 [1] , given: 163

Re: Lyme disease is caused by a bacterium... [#permalink] New post 13 Nov 2012, 19:20
1
This post received
KUDOS
Expert's post
Jp27 wrote:
Lyme disease is caused by a bacterium transmitted to humans by deer ticks. Generally
deer ticks pick up the bacterium while in the larval stage from feeding on infected whitefooted mice. However, certain other species on which the larvae feed do not harbor the bacterium. Therefore, if the population of these other species were increased, the number of ticks acquiring the bacterium and hence the number of people contracting Lyme disease—would likely decline.

Which of the following, if true, most strengthens the argument?

A. Ticks do not suffer any adverse consequences from carrying the bacterium that
causes Lyme disease in humans.
B. There are no known cases of a human’s contracting Lyme disease through contact
with white-footed mice.
C. A deer tick feeds only once while in the larval stage.
D. A single host animal can be the source of bacteria for many tick larvae.
E. None of the other species on which deer tick larvae feed harbor other bacteria that
ticks transmit to humans.

Good Q that I came across in GMAT PREP. sharing it with you guys. Happy learning ;D
[Reveal] Spoiler:
OA C

Cheers


Yes, it takes a min to understand the relation:

Bacteria -> whitefooted mice -> larvae of deer ticks -> humans

Larvae feed on other species which do not harbor the bacterium so increase their population. Fewer people will get Lyme disease.

A. Ticks do not suffer any adverse consequences from carrying the bacterium that
causes Lyme disease in humans.

Out of scope.

B. There are no known cases of a human’s contracting Lyme disease through contact
with white-footed mice.

Out of scope. Argument doesn't discuss whether humans can directly contract Lyme disease. The argument only deals with Lyme disease through deer ticks.

C. A deer tick feeds only once while in the larval stage.
If there are more uninfected food sources, it is likely that when the larvae feed, they feed on uninfected food. If the larvae do not feed again, it is probable that they will not carry the bacterium of Lyme disease and hence fewer humans will get affected. Answer (C)

D. A single host animal can be the source of bacteria for many tick larvae.
It doesn't strengthen our plan since bacteria could still proliferate if a single host can be source for many tick larvae. So we may not see much decrease in Lyme disease in humans.

E. None of the other species on which deer tick larvae feed harbor other bacteria that
ticks transmit to humans.

Out of scope.
_________________

Karishma
Veritas Prep | GMAT Instructor
My Blog

Save $100 on Veritas Prep GMAT Courses And Admissions Consulting
Enroll now. Pay later. Take advantage of Veritas Prep's flexible payment plan options.

Veritas Prep Reviews

SVP
SVP
User avatar
Joined: 01 Oct 2013
Posts: 1636
Followers: 229

Kudos [?]: 50 [0], given: 0

Premium Member
Re: Lyme disease is caused by a bacterium transmitted to humans [#permalink] New post 15 Apr 2014, 04:13
Hello from the GMAT Club VerbalBot!

Thanks to another GMAT Club member, I have just discovered this valuable topic, yet it had no discussion for over a year. I am now bumping it up - doing my job. I think you may find it valuable (esp those replies with Kudos).

Want to see all other topics I dig out? Follow me (click follow button on profile). You will receive a summary of all topics I bump in your profile area as well as via email.
Re: Lyme disease is caused by a bacterium transmitted to humans   [#permalink] 15 Apr 2014, 04:13
    Similar topics Author Replies Last post
Similar
Topics:
20 Experts publish their posts in the topic Lyme disease is caused by a bacterium transmitted to humans AndersonBound 68 21 Jul 2009, 21:18
1 Lyme disease is caused by a bacterium transmitted to humans jjhko 7 20 Apr 2009, 18:17
Lyme disease is caused by a bacterium transmitted to humans vivek123 11 02 Mar 2006, 18:03
Lyme disease is caused by a bacterium transmitted to humans cybera 5 15 Jul 2005, 08:43
Lyme disease is caused by a bacterium transmitted to humans chunjuwu 8 18 Jan 2005, 04:19
Display posts from previous: Sort by

Lyme disease is caused by a bacterium transmitted to humans

  Question banks Downloads My Bookmarks Reviews Important topics  


GMAT Club MBA Forum Home| About| Privacy Policy| Terms and Conditions| GMAT Club Rules| Contact| Sitemap

Powered by phpBB © phpBB Group and phpBB SEO

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®.