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# Lobsters and other crustaceans eaten by humans are more

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Current Student
Affiliations: SAE
Joined: 11 Jul 2012
Posts: 514
Location: India
Concentration: Strategy, Social Entrepreneurship
GMAT 1: 710 Q49 V37
GPA: 3.5
WE: Project Management (Energy and Utilities)
Followers: 29

Kudos [?]: 115 [0], given: 264

Lobsters and other crustaceans eaten by humans are more [#permalink]  20 Sep 2012, 22:22
00:00

Difficulty:

45% (medium)

Question Stats:

36% (02:05) correct 63% (01:50) wrong based on 49 sessions
Lobsters and other crustaceans eaten by humans are more likely to contract gill diseases when sewage contaminates their water. Under a recent proposal, millions of gallons of local sewage each day would be rerouted many kilometers offshore. Although this would substantially reduce the amount of sewage in the harbor where lobsters are caught, the proposal is pointless, because hardly any lobsters live long enough to be harmed by those diseases.

Which one of the following, if true, most seriously weakens the argument?

(A) Contaminants in the harbor other than sewage are equally harmful to lobsters.
(B) Lobsters, like other crustaceans, live longer in the open ocean than in industrial harbors.
(C) Lobsters breed as readily in sewage- contaminated water as in unpolluted water.
(D) Gill diseases cannot be detected by examining the surface of the lobster.
(E) Humans often become ill as a result of eating lobsters with gill diseases.
[Reveal] Spoiler: OA

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First Attempt 710 - first-attempt-141273.html

Last edited by getgyan on 21 Sep 2012, 01:02, edited 1 time in total.
Manager
Status: Fighting again to Kill the GMAT devil
Joined: 02 Jun 2009
Posts: 137
Location: New Delhi
WE 1: Oil and Gas - Engineering & Construction
Followers: 0

Kudos [?]: 22 [0], given: 48

Re: Lobsters and other crustaceans eaten [#permalink]  21 Sep 2012, 00:47
(A) should be the answer, if other contaminants are equally harmful then lobsters will get diseased even if sewer quantity is controlled.

(B) and (E) actually strengthens the conclusion.
(C) and (D) to me, doesn't affect the conclusion.
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Current Student
Affiliations: SAE
Joined: 11 Jul 2012
Posts: 514
Location: India
Concentration: Strategy, Social Entrepreneurship
GMAT 1: 710 Q49 V37
GPA: 3.5
WE: Project Management (Energy and Utilities)
Followers: 29

Kudos [?]: 115 [0], given: 264

Re: Lobsters and other crustaceans eaten [#permalink]  21 Sep 2012, 01:01
+1 E

It is a “weaken” type question

Premise - Lobsters and other crustaceans eaten by humans are more likely to contract gill diseases when sewage contaminates their water. Under a recent proposal, millions of gallons of local sewage each day would be rerouted many kilometers offshore

Conclusion - hardly any lobsters live long enough to be harmed by those diseases.

Anything which weakens the conclusion is our answer

(A) Contaminants in the harbor other than sewage are equally harmful to lobsters. (Not related to the conclusion, eliminate)
(B) Lobsters, like other crustaceans, live longer in the open ocean than in industrial harbors. (It does not solve our purpose in that it does not prove that lobsters live long enough to be harmed by gill disease)
(C) Lobsters breed as readily in sewage- contaminated water as in unpolluted water. (Premise is not related to breeding, eliminate)
(D) Gill diseases cannot be detected by examining the surface of the lobster. (Irrelevant)
(E) Humans often become ill as a result of eating lobsters with gill diseases. (This is the correct answer, it shows that lobsters do get harmed by gill diseases, thus weakening the conclusion that they do not live long enough to get harmed)

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First Attempt 710 - first-attempt-141273.html

Manager
Status: Fighting again to Kill the GMAT devil
Joined: 02 Jun 2009
Posts: 137
Location: New Delhi
WE 1: Oil and Gas - Engineering & Construction
Followers: 0

Kudos [?]: 22 [0], given: 48

Re: Lobsters and other crustaceans eaten [#permalink]  21 Sep 2012, 01:09
Totally missed that one; on the lighter side how would lobsters live long enough if humans continue to eat them
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Re: Lobsters and other crustaceans eaten   [#permalink] 21 Sep 2012, 01:09
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