The psychoactive effect of THC may reflect the capacity of THC to cause the release of

Which of the following neurotransmitters affects neurons involved in learning, dreaming, and waking from sleep?

a. Serotonin b. Dopamine c. Norepinephrine d. Acetylcholine

What illegal substance used by pregnant women produces an intense restriction of the arteries, causing a significant reduction in the flow of blood and oxygen to the fetus,

thereby increasing the risk of fetal death and a number of birth defects and disabilities? a) Cocaine b) Marijuana c) AZT d) Amphetamines