Luke is playing with a bouncing ball in his playpen when it accidentally bounces out of the playpen and rolls under a nearby chair. Luke tries to get his mother to retrieve his ball by pointing in the direction of where the ball went under the chair. What would Jean Piaget say Luke's behavior illustrates?

The vast majority of older adults are ______

a. impotent or incapable of sexual response b. uninterested in sex, even if capable of sexual activity c. sexually active, but no longer orgasmic d. sexually active and orgasmic

Among many American Indian tribes, people who become

preoccupied with death and the deceased have symptoms that include bad dreams, weakness, fainting, and hallucinations and are said to suffer from a. ghost sickness. b. hikikomori. c. koro. d. amok de la muertos.