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#35213
Complete Question Explanation
(See the complete passage discussion here: lsat/viewtopic.php?t=14217)

The correct answer choice is (C)

This question asks for the likely outcome if the aggressive disease organisms discussed on line 46
were eliminated from land that had been in constant agricultural use. Such disease, researchers
concluded, were the reason that seeds in overfarmed plots did not do as well as those growing in land
that had been out of production for two decades. Presumably, if such disease were to be eliminated,
the seeds would do better, perhaps as well as those growing naturally nearby.

Answer choice (A): There is no basis to conclude that beneficial microorganisms would decline if
the disease organisms were eliminated.

Answer choice (B): The elimination of the disease organisms would not render unwanted species
unable to survive, so this is not the right answer choice.

Answer choice (C): This is the correct answer choice. As discussed, such seeds would likely do
better if the harmful aggressive disease organisms could be eliminated; the native plant would have a
better chance of survival.

Answer choice (D): Nothing in the passage suggests that the elimination of disease organisms in
over-farmed land would result in a long-term increase in the number of beneficial microorganisms.

Answer choice (E): The author does not suggest that eliminating disease microorganisms would be
likely to result in proportional increases in the population of other disease organisms, so this cannot
be the right answer to this Must Be True question.
 lmasta0340
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#75305
Hi,

I understand why C is correct, but I am a little confused by the word "beneficial" in this answer choice. I know some microorganisms are beneficial, but I do not see where the passage points out the fact that the native plants are beneficial. Is this supposed to be assumed because the native plants help to prevent thistles?

Thank you in advance!
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 KelseyWoods
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#75334
Hi lmasta0340!

Yes, the native plants are considered beneficial because they help to prevent thistles, but also because they return the land to its natural ecological system. Also, if native plants were not beneficial, there would not be much point to, or effort put into, restoring those natural plants.

Hope this helps!

Best,
Kelsey
 rosiemoss
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#83122
Why is D wrong? Thanks!
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 KelseyWoods
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#83224
Hi Rosie!

Welcome to the forum and thanks for the question! As stated in the explanation above, answer choice (D) is wrong because there is nothing in the passage to support it. If you can be more specific about why you liked (D) and which part of the passage you think supports that answer choice, then we can help you out with a more specific explanation!

Best,
Kelsey

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