Which of the following is believed to be the synaptic basis for learning and memory?

People are most likely to have tried the drug ________ during their lifetime.

a. morphine b. crack cocaine c. alcohol d. heroin e. LSD

Compared to schools in the United States, those in Eastern countries _____________________________

a. have a shorter school day b. are all sex-segregated c. focus almost exclusively on rote learning d. place a greater emphasis on creativity