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Home Q & A Board Science-Related Homework Help Psychology
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duonghathuylinh duonghathuylinh
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6 years ago
The melatonin taken orally as medication is
 
  A) synthesized from dopamine.
  B) exogenous.
  C) endogenous.
  D) both A and B
  E) both A and C
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IDJIDJ
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duonghathuylinh Author
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6 years ago
Thank you, thank you, thank you!
wyq2651
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Yesterday
Thanks for your help!!
ky
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2 hours ago
Correct Slight Smile TY
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