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Home Q & A Board Science-Related Homework Help Psychology
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killian killian
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9 years ago
Neurons transmit messages to other neurons by means of chemical substances    
      known as ______.                                          
      a.   precursors                     c.   neurotransmitters            
      b.   hormones                     d.   peptides
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Smiling Face with Open Mouth
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f_zah1f_zah1
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