OG-12

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OG-12

by gmatnmein2010 » Tue Feb 16, 2010 9:18 pm
The Eurasian ruffe, a fish species inadvertently introduced into North America's Great Lakes in recent years,
feeds on the eggs of lake whitefish, a native species, thus threatening the lakes' natural ecosystem. To help
track the ruffe's spread, government agencies have produced wallet-sized cards about the ruffe. The cards
contain pictures of the ruffe and explain the danger they pose; the cards also request anglers to report any ruffe
they catch.

Which of the following, if true, would provide most support for the prediction that the agencies' action will have
its intended effect?

(A) The ruffe has spiny fins that make it unattractive as prey.
(B) Ruffe generally feed at night, but most recreational fi shing on the Great Lakes is done during daytime hours.
(C) Most people who fi sh recreationally on the Great Lakes are interested in the preservation of the lake
whitefi sh because it is a highly prized game fish.
(D) The ruffe is one of several nonnative species in the Great Lakes whose existence threatens the survival of
lake whitefish populations there.
(E) The bait that most people use when fi shing for whitefi sh on the Great Lakes is not attractive to ruffe.
Source: — Critical Reasoning |

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by money9111 » Tue Feb 16, 2010 9:44 pm
i think this one is C because the agency is hoping that by passing out cards people will recognize the fish when they catch it... and won't throw it back because they want to preserve the lake since the whitefish is a good for them
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by thephoenix » Tue Feb 16, 2010 11:16 pm
(A) The ruffe has spiny fins that make it unattractive as prey.
----> It does neither strengthens nor weakens the agency's action: no effect ..incorrect

(B) Ruffe generally feed at night, but most recreational fi shing on the Great Lakes is done during daytime hours.
-----> Nothing has been said about day/night time fishing ....incorrect

(C) Most people who fish recreationally on the Great Lakes are interested in the preservation of the lake
whitefish because it is a highly prized game fish.
----> People fish just for recreation and they might fish ruffe (people want to preserve the lake)after receiving the information from agency's actions ....correct

(D) The ruffe is one of several nonnative species in the Great Lakes whose existence threatens the survival of
lake whitefish populations there.
----> Premise already given in the question.It does neither strengthens nor weakens the agency's action....incorrect

(E) The bait that most people use when fishing for whitefish on the Great Lakes is not attractive to ruffe.Additional Information.
---->same as A.......incorrect

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by amazonviper » Wed Feb 17, 2010 7:06 am
IMO C due to the above stated reasons. Please let us know the OA. Thanks.
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by komal » Wed Feb 17, 2010 8:45 am
gmatnmein2010 wrote:The Eurasian ruffe, a fish species inadvertently introduced into North America's Great Lakes in recent years, feeds on the eggs of lake whitefish, a native species, thus threatening the lakes' natural ecosystem. To help
track the ruffe's spread, government agencies have produced wallet-sized cards about the ruffe. The cards contain pictures of the ruffe and explain the danger they pose; the cards also request anglers to report any ruffe they catch.

Which of the following, if true, would provide most support for the prediction that the agencies' action will have
its intended effect?

(A) The ruffe has spiny fins that make it unattractive as prey.

(B) Ruffe generally feed at night, but most recreational fi shing on the Great Lakes is done during daytime hours.

(C) Most people who fish recreationally on the Great Lakes are interested in the preservation of the lake
whitefi sh because it is a highly prized game fish.

(D) The ruffe is one of several nonnative species in the Great Lakes whose existence threatens the survival of
lake whitefish populations there.

(E) The bait that most people use when fi shing for whitefi sh on the Great Lakes is not attractive to ruffe.
(C) is correct

Here the assumption is that the ppl who fish recreationally do care about whitefish. If they dint care they would not really support the agency's action. We have to find an answer choice that strengthens this assumption. Only (C) does that for us by stating that ppl who fish on great lakes are interested in the preservation of the lake whitefish and thus they would help in the agency's plan.