The __________ of codeine, morphine, and other opiates include decreased sensitivity to pain, slowing of the digestive system, sedation, muscular relaxation, constriction of the pupils, and at high doses, euphoria

a. sites of action
b. drug effects
c. exogenous substances
d. endogenous substances
e. drugs

Answer: a. sites of action

Psychology

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According to Freud, the id is governed by the

a. pleasure principle. b. reality principle. c. ego ideal. d. creature comfort principle.

Psychology

Describe several legally available dietary (nutritional) supplements that are used as possible performance enhancers. What is known about their effectiveness?

What will be an ideal response?

Psychology