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#20- Galanin is a protein found in the brain. In an

Dajpol
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Can someone help me understand why D is the answer? I selected A, and am guessing now after a review of the answer - that A may actually weaken the question? Is that true?

Thanks!
David Boyle
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Dajpol wrote:Can someone help me understand why D is the answer? I selected A, and am guessing now after a review of the answer - that A may actually weaken the question? Is that true?

Thanks!



Hello Dajpol,

Answer A may weaken, since it shows a disjunction, a lack of connection, between galanin and actually choosing fatty foods. Answer D, on the other hand, helps eliminate the possibility that instead of the galanin making rats want fatty foods, maybe eating the fatty foods put more galanin in the rats' brains instead.

Hope this helps,
David