Caffeine and cocaine are both considered to be stimulant drugs

Conflict between various aspects of the personality takes place primarily in the

a) conscious. b) conscience. c) preconscious. d) unconscious.

According to Piaget, in the ____________ substage, infants will push one toy out of the way to reach a partially hidden toy underneath

a. primary circular reaction c. coordination of secondary circular reaction b. secondary circular reaction d. tertiary circular reaction