Pls share ur logic, thanks. Q31: By competing with rodents : GMAT Critical Reasoning (CR)
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Pls share ur logic, thanks. Q31: By competing with rodents

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Pls share ur logic, thanks. Q31: By competing with rodents [#permalink]

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04 Jun 2007, 08:20
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Pls share ur logic, thanks.
Q31:
By competing with rodents for seeds, black ants help control rodent populations that pose a public health risk. However, a very aggressive species of blank ant, the Loma ant, which has recently invaded a certain region, has a venomous sting that is often fatal to humans. Therefore, the planned introduction into that region of ant flies, which prey on Loma ants, would benefit public health.

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

A.Ant flies do not attack black ants other than Loma ants.
B.Loma ants are less effective than many bird species in competing with rodents for seeds.
C.Certain other species of black ants are more effective than Loma ants in competing with rodents for seeds.
D.The sting of Loma ants can also be fatal to rodents.
E.The use of pesticides to control Loma ants could have harmful effects on the environment.
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04 Jun 2007, 09:36
A

we dont want ant flies to disrupt black ants from competing with rodents , which they dont
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04 Jun 2007, 09:51
jet1445 wrote:
Pls share ur logic, thanks.
Q31:
By competing with rodents for seeds, black ants help control rodent populations that pose a public health risk. However, a very aggressive species of blank ant, the Loma ant, which has recently invaded a certain region, has a venomous sting that is often fatal to humans. Therefore, the planned introduction into that region of ant flies, which prey on Loma ants, would benefit public health.

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

A.Ant flies do not attack black ants other than Loma ants.
B.Loma ants are less effective than many bird species in competing with rodents for seeds.
C.Certain other species of black ants are more effective than Loma ants in competing with rodents for seeds.
D.The sting of Loma ants can also be fatal to rodents.
E.The use of pesticides to control Loma ants could have harmful effects on the environment.

E

Sorry it should be only A.

Last edited by baski6 on 04 Jun 2007, 14:20, edited 1 time in total.
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04 Jun 2007, 10:00
A is good
04 Jun 2007, 10:00
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