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Mayor: Migrating shorebirds stop at our beach just to feed [#permalink]
 25 Nov 2008, 10:40
Question Stats:
100% (02:02) correct
0% (00:00) wrong based on 8 sessions
Mayor: Migrating shorebirds stop at our beach just to feed on horseshoe-crab eggs, a phenomenon that attracts tourists. To bring more tourists, the town council plans to undertake a beach reclamation project to double the area available to crabs for nesting.
Birdwatcher: Without a high density of crabs on a beach, migrating shorebirds will go hungry because shorebirds only eat eggs that a crab happens to uncover when it is digging its own nest.
Which of the following, if true, would provide the mayor with the strongest counter to the birdwatcher’s objection?
A. Every year a certain percentage of crabs are caught by fishermen as bait for eel traps.
B. Horseshoe crabs are so prolific that given favorable circumstances their numbers increase rapidly.
C. On average, tourists who come to the town in order to watch birds spend more money there than tourists who come for other purposes.
D. The additional land made available by the reclamation project will give migrating shorebirds more space.
Some of the migrating shorebirds make only one stop during their migration form South America to Canada
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Re: Mayor: Migrating shorebirds stop at our beach just to feed [#permalink]
28 Nov 2012, 05:37
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Clear B. Option A makes nonsense
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Ans B -- The discussion here is regarding reclaiming extra space by decimating crabs which in turn ,according to Birdwatcher may cause loss of horseshoe-crab eggs . This may dwindle the gathering of shorebirds . This in turn will impact the Moyer's reason to claim the space to attract more tourists . But if crab breed rapidly then Moyer reason can easily undermine Birdwatcher's comment.
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Senior Manager
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OA is not B
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then your OA is wrong..this is straight up B
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Senior Manager
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OA is A , however it makes no sense .
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Nihit wrote: Mayor: Migrating shorebirds stop at our beach just to feed on horseshoe-crab eggs, a phenomenon that attracts tourists. To bring more tourists, the town council plans to undertake a beach reclamation project to double the area available to crabs for nesting.
Birdwatcher: Without a high density of crabs on a beach, migrating shorebirds will go hungry because shorebirds only eat eggs that a crab happens to uncover when it is digging its own nest.
Which of the following, if true, would provide the mayor with the strongest counter to the birdwatcher’s objection?
A. Every year a certain percentage of crabs are caught by fishermen as bait for eel traps.
B. Horseshoe crabs are so prolific that given favorable circumstances their numbers increase rapidly.
C. On average, tourists who come to the town in order to watch birds spend more money there than tourists who come for other purposes.
D. The additional land made available by the reclamation project will give migrating shorebirds more space.
Some of the migrating shorebirds make only one stop during their migration form South America to Canada IMO B So the argument here is whether the mayor's argument can be supported in light of the birdwatcher's argument. So mayor just offers the land. Birdwatcher says we need more such frogs. If we add B to mayor's argument i think we get it.
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Director
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This is clear B.
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A????????No way! it must be B. whts the source? Nihit wrote: OA is A , however it makes no sense .
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Yeah! B clearly offers support to mayor by saying the HSC proliferate fast to cover the increase of the nesting area provided by the mayor and city.
A actually undermines the mayor's point by saying that HSC are taken away by FM. Also, it does not specify how much % of them are taken away. Lets say if the FM take 50%, it's a toast. If they take 1%, probably does not make much difference. We can't say for sure. So it can't be A
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Where DO these things come from? Of course it is B. The birdwatcher's objection is that there must be a high DENSITY of crabs in order to attract the birds. He/she is assuming that an increase in the area of the beach necessarily reduces density. Choice B negates this assumption; it says that if beach area is increased, the crabs will multiply to fill it up.
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Re: Mayor: Migrating shorebirds stop at our beach just to feed [#permalink]
20 Nov 2012, 02:00
Please stay away from sources floating around the net. This questions appears on the GMAT PREP as well. The OA to the above question is B. It's senseless to make discussions with a wrong OA. Thanks, Ankit
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Re: Mayor: Migrating shorebirds stop at our beach just to feed
[#permalink]
20 Nov 2012, 02:00
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