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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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New post Updated on: 08 Sep 2018, 22:17
1
14
00:00
A
B
C
D
E

Difficulty:

  5% (low)

Question Stats:

88% (01:11) correct 12% (01:25) wrong based on 2587 sessions

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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 black 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.


ID - CR06749

Originally posted by ricokevin on 02 Apr 2007, 18:48.
Last edited by Abhishek009 on 08 Sep 2018, 22:17, edited 3 times in total.
Edited the question.
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Re: By competing with rodents for seeds, black ants help control  [#permalink]

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New post Updated on: 02 Apr 2007, 20:59
2
1
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

Originally posted by pi10t on 02 Apr 2007, 20:09.
Last edited by pi10t on 02 Apr 2007, 20:59, edited 1 time in total.
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Re: By competing with rodents for seeds, black ants help control  [#permalink]

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New post 02 Apr 2007, 21:00
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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Re: By competing with rodents for seeds, black ants help control  [#permalink]

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New post 02 Apr 2007, 23:15
Answer A cus only loma ants cause harm to people and not the other kind of black ants.
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Re: By competing with rodents for seeds, black ants help control  [#permalink]

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New post 02 Apr 2007, 23:18
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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Re: By competing with rodents for seeds, black ants help control  [#permalink]

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New post 31 Jan 2016, 12:54
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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Re: By competing with rodents for seeds, black ants help control  [#permalink]

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New post 13 Jul 2016, 01:04
3
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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Re: By competing with rodents for seeds, black ants help control  [#permalink]

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New post 25 Jan 2017, 00:17
A is the answer. Very easy thinking.

Black ants also provide health benefit and should be protected.
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Re: By competing with rodents for seeds, black ants help control  [#permalink]

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New post 25 Oct 2018, 00:27
Quote:
By competing with rodents for seeds, black ants help control rodent populations that pose a public health risk. However, a very aggressive species of black 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.


The argument says that black ants compete with rodents for seeds and hence control rodent populations that poses a risk to humans.
Then it says that Loma Ant, a Blank Ant species, however is harmful to humans because of its venomous sting. To combat this, ant flies ,which prey on Loma ants, are introduced.

Conclusion:- Therefore, the planned introduction into that region of ant flies, which prey on Loma ants, would benefit public health.

Prethinking:-

Quote:
To strengthen, we have to see that

1. Wiping out Loma ants will not somehow impact rodents.
2. Ant flies are not preying on other black ants.


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

Quote:
(A) Ant flies do not attack black ants other than Loma ants.

As per our prethinking Point2.

Quote:
(B) Loma ants are less effective than many bird species in competing with rodents for seeds.

No comparison of Loma ants and other bird species required here. Irrelevant

Quote:
(C) Certain other species of black ants are more effective than Loma ants in competing with rodents for seeds.

If this is true, it is good to remove Loma Ants because they have venomous sting. Keep this


Quote:
(D) The sting of Loma ants can also be fatal to rodents.

But then it is equally fatal to humans. Out of scope.

Quote:
(E) The use of pesticides to control Loma ants could have harmful effects on the environment.

We are not using pesticides but an flies. Irrelevant.



Out of A and C, A matches our pre-thinking and is the winner.
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By competing with rodents for seeds, black ants help control  [#permalink]

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New post 03 Dec 2018, 23:49
My apologies if I am wrong:

But the OG book which I am referring has framed this question slightly different though the passage is exactly the same and the answer choices are also exactly the same with the OA being option A.

605. Which of the following most logically completes the argument?
By competing with rodents for seeds, black ants help control rodent populations
that pose a public health risk. However, a very aggressive species of black 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, since ________.
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By competing with rodents for seeds, black ants help control &nbs [#permalink] 03 Dec 2018, 23:49
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