Agonists________,whereas antagonists ________.
A) increase the availability of neurotransmitters; increase the effectiveness of neurotransmitters
B) block receptor sites; increase the effectiveness of neurotransmitters.
C) increase the availability of neurotransmitters; block receptor sites.
D) speed up the transmission of neural impulses; mimic the action of neurotransmitters
E) speed up the transmission of neural impulses; increase the effectiveness of neurotransmitters
Correct Answer:
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