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Home Q & A Board Biology-Related Homework Help Biochemistry
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ksultz ksultz
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6 years ago
Which of the following is used to characterize a material as either a neurotransmitter or a hormone?
 a. its chemical composition c. both a and b
  b. its physiological behavior d. either a or b
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131231131231
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6 years ago
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ksultz Author
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6 years ago
Thank you, thank you, thank you!
veronee_madison
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Yesterday
Thanks for your help!!
Marctheshark
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2 hours ago
Smart ... Thanks!
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