Marine biologists had hypothesized that lobster kept : GMAT Critical Reasoning (CR)
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# Marine biologists had hypothesized that lobster kept

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18 Feb 2004, 12:59
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Marine biologists had hypothesized that lobster kept together in lobster traps eat one another in response to hunger. Periodic checking of lobster traps, however, has revealed instances of lobsters sharing traps together for weeks. Eight lobsters even shared trap together for two months without eating one another. The marine biologistsтАЩ hypothesis, therefore , is clearly wrong.

The argument against the marine biologistsтАЩ hypothesis is based on which one of the following assumptions

Lobsters not caught in lobster traps have been observed eating one another

Two months is the longest known period during which eight or more lobsters have been trapped together

It is unusual to find as many as eight lobsters caught together in one single trap

Members of the other marine species sometimes eat their own kind when no other food sources are available

Any food that the eight lobsters in the trap might have obtained was not enough to ward off hunger
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18 Feb 2004, 13:24
E
If the food in the trap was enough to ward off hunger, then the lobster would not have eaten each other. The biologists would then be wrong to assert that while living in the trap, the lobsters did not eat each other despite hunger; the lobster had enough food to survive. Therefore, E has to be assumed; there was not enough food in the lobster trap.
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Paul

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18 Feb 2004, 13:32
E.

A) "Lobsters not caught in lobster traps have been observed eating one another"

Out of scope.

B) "Two months is the longest known period during which eight or more lobsters have been trapped together"

The marine biologist's argument if not about time.

C) "It is unusual to find as many as eight lobsters caught together in one single trap"

This is irrelevant.

D) "Members of the other marine species sometimes eat their own kind when no other food sources are available"

Out of scope.

E) "Any food that the eight lobsters in the trap might have obtained was not enough to ward off hunger"

This has to be the assumption. The marine biologist says that the lobster's eat each other in response to hunger. The argument seems to assume that the lobsters are not satisfied by food from other sources.
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18 Feb 2004, 13:33
i assume its B..
paul.. u said..that.. The biologists would then be wrong to assert that while living in the trap, the lobsters did not eat each other despite hunger

infact.. the biologist believe that they eat one another when they are hungery..
i am wrong myself..?? pls correct if so
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18 Feb 2004, 14:18
E...
We are suppsoed to strengthen the second part of the stem...which is done by E only.So E.

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11 Apr 2016, 04:54
It seems to me that the correct one is E.
Re: Marine biologists had hypothesized that lobster kept   [#permalink] 11 Apr 2016, 04:54
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