One reason for the decline of adolescent pregnancy rates is the increase in prevalence of sexual substitutes, such as oral sex

The psychoanalytic theory of dreaming states that

A) the purpose of dreaming is to express unconscious wishes and urges. B) there is no purpose to dreaming; dreams occur because of random brainstem signals. C) the purpose of dreaming is to resolve current concerns and problems that we are conscious of. D) dreaming is a by-product of a process of eliminating or strengthening neural connections.

Rosenzweig's study found that when compared to rats raised in an impoverished environment, rats raised in an enriched environment had ______ neurons with ______ synaptic connections

a. smaller; fewer b. smaller; more c. larger; fewer d. larger; more