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# QOTD #22 Over a period of several months, researchers attached

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QOTD #22 Over a period of several months, researchers attached  [#permalink]

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07 Dec 2017, 04:54
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15% (low)

Question Stats:

79% (01:12) correct 21% (01:27) wrong based on 169 sessions

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Over a period of several months, researchers attached small lights to the backs of wetas—flightless insects native to New Zealand—enabling researchers for the first time to make comprehensive observations of the insects' nighttime activities.Thus, since wetas forage only at night, the researchers' observations will significantly improve knowledge of the normal foraging habits of wetas.

Which of the following is an assumption on which the argument depends？

(A) Researchers were interested only in observing the wetas' foraging habits and so did not keep track of other types of behavior.
(B) No pattern of behavior that is exhibited by wetas during the nighttime is also exhibited by wetas during the daytime.
(C)Attaching the small lights to the wetas' backs did not greatly alter the wetas' normal night- time foraging habits.
(D)Wetas typically forage more frequently during the months in which the researchers studied them than they do at other times.
(E)The researchers did not use other observational techniques to supplement their method of using small lights to track the nighttime behavior of wetas.

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Re: QOTD #22 Over a period of several months, researchers attached  [#permalink]

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07 Dec 2017, 07:40
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carcass wrote:
Over a period of several months, researchers attached small lights to the backs of wetas—flightless insects native to New Zealand—enabling researchers for the first time to make comprehensive observations of the insects' nighttime activities.Thus, since wetas forage only at night, the researchers' observations will significantly improve knowledge of the normal foraging habits of wetas.

Which of the following is an assumption on which the argument depends？

(A) Researchers were interested only in observing the wetas' foraging habits and so did not keep track of other types of behavior.
(B) No pattern of behavior that is exhibited by wetas during the nighttime is also exhibited by wetas during the daytime.
(C)Attaching the small lights to the wetas' backs did not greatly alter the wetas' normal night- time foraging habits.
(D)Wetas typically forage more frequently during the months in which the researchers studied them than they do at other times.
(E)The researchers did not use other observational techniques to supplement their method of using small lights to track the nighttime behavior of wetas.

Going with C ..
negate C , and it will shatter the Argument :Attaching the small lights to the wetas' backs did not greatly alter the wetas' normal night- time foraging habits.
So Researchers will not able to improve their knowledge base with respect to insects
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Re: QOTD #22 Over a period of several months, researchers attached  [#permalink]

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07 Dec 2017, 09:05
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Imo C. If there experiment deviates the behavior from normal , the aim of studying the 'normal' behavior is not achieved.
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Re: QOTD #22 Over a period of several months, researchers attached  [#permalink]

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10 Dec 2017, 06:37
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C is my final choice because if small lights alter wetas' normal night, then the author's assumption will fall apart.
Press Kudos if you agree please! I still many more of them. Thanks in advance!
Re: QOTD #22 Over a period of several months, researchers attached &nbs [#permalink] 10 Dec 2017, 06:37
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