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Black Americans are, on the whole, about twice as likely as

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Black Americans are, on the whole, about twice as likely as [#permalink] New post 26 Oct 2011, 19:19
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A
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46% (02:32) correct 54% (02:14) wrong based on 151 sessions
Black Americans are, on the whole, about twice as likely as White Americans to develop high blood pressure. This likelihood also holds for westernized Black Africans when compared to White Africans.
Researchers have hypothesized that this predisposition in westernized Blacks may reflect an interaction between western high-salt diets and genes that adapted to an environmental scarcity of salt.

Which of the following statements about present-day, westernized Black Africans, if true, would most tend to confirm the researchers' hypothesis?

(a) The blood pressures of those descended from peoples situated throughout their history in Senegal and Gambia, where salt was always available, are low.
(b) The unusually high salt consumption in certain areas of Africa represents a serious health problem.
(c) Because of their blood pressure levels, most White Africans have markedly decreased their salt consumption.
(d) Blood pressures are low among the Yoruba, who, throughout their history, have been situated far inland from sources of sea salt and far south of Saharan salt mines.
(e)No significant differences in salt metabolism have been found between those people who have had salt available throughout their history and those who have not.
[Reveal] Spoiler: OA

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Last edited by Narenn on 31 Oct 2013, 11:38, edited 1 time in total.
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Re: westernized Black Africans and high blood pressure [#permalink] New post 27 Oct 2011, 09:18
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Re: Black Americans are, on the whole, about twice as likely as [#permalink] New post 04 Nov 2013, 01:58
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Re: Black Americans are, on the whole, about twice as likely as [#permalink] New post 06 Nov 2013, 11:12
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Re: Black Americans are, on the whole, about twice as likely as [#permalink] New post 07 Nov 2013, 12:02
My question for this one is: For answer choice A, are we supposed to assume that they mean black people, and not all people?

That does not seem clear to me?
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Re: Black Americans are, on the whole, about twice as likely as [#permalink] New post 07 Nov 2013, 21:25
anujkhatiwada wrote:
My question for this one is: For answer choice A, are we supposed to assume that they mean black people, and not all people?

That does not seem clear to me?


Hi anujkhatiwada ,
The question already tells you :
Which of the following statements about present-day, westernized Black Africans, if true, would most tend to confirm the researchers' hypothesis?
So this applies to all the options not just choice A

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Re: Black Americans are, on the whole, about twice as likely as   [#permalink] 07 Nov 2013, 21:25
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