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# The human growth hormone, made by the pituitary gland, is

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12 Sep 2005, 12:38
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The human growth hormone, made by the pituitary gland, is secreted during sleep in higher concentrations than when awake.

(A) during sleep in higher concentrations than when awake
(B) when sleeping in higher concentrations than waking hours
(C) in higher concentrations during sleeping than waking
(D) in higher concentrations during sleep than during waking hours
(E) in higher concentrations when asleep than when awake

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12 Sep 2005, 13:07
I would pick D - the "hormone is secreted in higher concentrations," not "the hormone is secreted during sleep in higher..." D also supplies the word "during" to show exactly when the hormone is secreted in higher concnetrations.
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12 Sep 2005, 13:15

I will go with E...

chet719 wrote:
I would pick D - the "hormone is secreted in higher concentrations," not "the hormone is secreted during sleep in higher..." D also supplies the word "during" to show exactly when the hormone is secreted in higher concnetrations.

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12 Sep 2005, 13:30
If I could go back and change my answer I would change it to E. On a second look E seems to obey the rule of parallelism while D does not..."during sleep then during waking..."
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12 Sep 2005, 13:40
I'll go with 'E'.

Comparing "sleep" and "waking hours" doesn't make sense in 'D'. Also avoid 'ing' forms.

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12 Sep 2005, 16:46
It is D.

E) in higher concentrations when asleep than when awake
What E says is thet harmone sleep or wake... Which is wrong.. They are in high concentration during sleep than in waking hours...

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12 Sep 2005, 19:42
I go with D.

During sleep than during waking hours seems to capture the essence correctly. This conveys the time period when the secretions are higher!

E - in higher concentrations when asleep than when awake - something seems to be missing in here. (not quite the GMAT way of reasoning i know!)
When asleep - when who is asleep? sounds wierd!
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13 Sep 2005, 09:36
OA is D for this one.

I also chose E for the parallellism but it might be a little strange to say that a homone is a awake or asleep.

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13 Sep 2005, 19:11
Yeah precisely! E sounds like the hormone is asleep. Also, the essence here is that secretion increases duing a period of time and this while you are sleeping or while you are awake! (waking hours here!!!)
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13 Sep 2005, 19:11
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# The human growth hormone, made by the pituitary gland, is

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