Terrance went to the dentist and was given some Novocain. This prevented him from feeling pain because the drug ____.
A. attached to sodium channels letting in sodium and stopping the action potential from sending a pain message
B. attached to potassium channels letting in potassium and stopping the action potential from sending a pain message
C. attached to potassium channels blocking potassium from entering and stopping the action potential from sending a pain message
D. attached to sodium channels blocking sodium from entering and stopping the action potential from sending a pain message
Answer: D
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Piaget called the reasoning that characterizes adolescence _____.
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