Steven had been "hooked" for a while before he decided to "go clean." Within 6 to 12 hours, he started to experience excessive yawning, nausea and vomiting, chills, muscle aches, diarrhea, and insomnia. His behavior disrupted his work and social relationships. These symptoms persisted for three days. After a week, he felt better. Steven is probably withdrawing from

A. alcohol.
B. cocaine.
C. heroin.
D. LSD.


Answer: C

Psychology

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Down syndrome is caused by

A. an extra 21st chromosome. B. a missing 21st chromosome. C. lack of oxygen at birth. D. unknown influences.

Psychology

______ emotions are associated with higher levels of cardiovascular disease

a. Neither positive nor negative b. Positive but not negative c. Negative but not positive d. Both positive and negative

Psychology

Born at 32 weeks after conception, Sasha weights in at 900 grams (about 2 pounds). Given this information, Sasha is best defined as:

a. Full-term and normal birth weight. b. Preterm and normal birth weight. c. Preterm and very low birth weight. d. Overdue and normal birth weight.

Psychology

Lenny's parents are very strict, and he feels oppressed at home. As a result, he often acts out at school, causing a ruckus in the classroom. Urie Bronfenbrenner would say that Lenny's acting-out behavior originates in his

A) exosystem. B) macrosystem. C) microsystem. D) mesosystem.

Psychology