Barbiturates are known as

Opium and its derivatives, morphine and heroin, duplicate the action of which of the following?

How many drinks would the average person have to consume to reach a blood alcohol level of approximately 0.15 percent?

_____ cause the brain to alter its interpretation of sensations.

Smoking marijuana

Astor wanted to try marijuana to experience the effects of which of the following class of drugs?

Even in mild doses, marijuana negatively affects

_____ causes dehydration and a rise in body temperature.