When individuals who consume alcohol regularly exhibit decreased sensitivity to other drugs with sedative-hypnotic properties, e.g., barbiturates, it is an indication of

Piaget stated that children's theories about the world

a. remain the same until adulthood. b. undergo three major changes during development. c. are never tested by the children. d. are based on what adults tell them.

Most experts agree that the biggest factor in regard to teenage pregnancy is

A) premature physical development. B) living in poverty. C) abusive parents. D) overexposure to sex in the media.