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By competing with rodents for seeds, black ants help control

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By competing with rodents for seeds, black ants help control [#permalink]

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A
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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.

:)
[Reveal] Spoiler: OA
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Re: CR - Loma ants (good one?!?!) [#permalink]

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New post 02 Apr 2007, 21:09
I would take (A).
Black ants help to benefit public health through controlling rodent populations.

B - out of scope: birds
C- out of scope
D- out
E - out : pesticides

Last edited by pi10t on 02 Apr 2007, 21:59, edited 1 time in total.
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New post 02 Apr 2007, 21:57
clearly A...
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New post 02 Apr 2007, 22:00
A is best. Since it doesn't attack other black ants other than loma ants, then there are still populations of blacks ants that keeps the rodent population in control.
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New post 02 Apr 2007, 22:43
Only A strenthens the argument.
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New post 02 Apr 2007, 23:50
Yes, OA is A indeed. :)

Hmmm...not so tough?? 8-)
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New post 03 Apr 2007, 00:15
Answer A cus only loma ants cause harm to people and not the other kind of black ants.
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New post 03 Apr 2007, 00:18
Even though the question is not that tough it is good to have easy ones in between to keep your confidence up, eh???

I too picked A.
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New post 03 Apr 2007, 09:02
surbab wrote:
Even though the question is not that tough it is good to have easy ones in between to keep your confidence up, eh???

I too picked A.


Good one surbab :-)
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Re: By competing with rodents for seeds, black ants help control [#permalink]

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New post 13 Apr 2013, 14:12
ricokevin wrote:
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.

:)


Need every answer choice`s explanation
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Re: By competing with rodents for seeds, black ants help control [#permalink]

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New post 03 May 2015, 04:20
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Re: By competing with rodents for seeds, black ants help control [#permalink]

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New post 31 Jan 2016, 13:54
ricokevin wrote:
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.

:)


B C D are wrong.
While A and E both strengthen, the conclusion is inferred from the premise that the planned introduction of ant flies benefits public health. Thus, a premise where ant flies is an advantage should be the correct answer. Eliminate E and answer is A.
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By competing with rodents for seeds, black ants help control [#permalink]

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New post 13 Jul 2016, 02:04
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Correct answer is A

1) Rat causes disease to human ===> Rats are bad for humans
2) Ant control rat population ===> Ant kills rat and helps humans to stay healthy. Ants are good for humans
3) But Loma Ant kills human ====> one type of ant Loma Ant is bad for humans.
4) Fly will kill Loma ant===> Loma ant will die = Human safe and healthy again

What if the fly kill all types of ant, then according to equation 2 rat population will increase==> when rat population increase then according to equation 1 human get disease.

So how can we strenghten the fact that flies would be good for humans?

Option A says that flies will kill only loma ant but not other ants.

This options doubly strengthen the argument:-
HUMANS will not die of loma ant poison
Other ant population will not decrease and these ant will keep killing rats, (so human will not get disease)

PERFECT CHOICE IS A


ricokevin wrote:
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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By competing with rodents for seeds, black ants help control   [#permalink] 13 Jul 2016, 02:04
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