Billy and Rodney are both building toys out of Legos, but they are sitting apart, each with their own set of blocks. What type of play is this?

Which of the following describes how learning changes neural structure?

a. ?Neurons have larger numbers of axon terminals following sensitization. b. ?Neurons have smaller numbers of axon terminals following sensitization. c. ?Neurons have larger numbers of axon terminals following habituation. d. ?Neurons have larger numbers of axon terminals following habituation and sensitization.

A goal of psychoanalysis was to strengthen the psychic structure that Freud called the

a. id. c. superego. b. ego. d. conscience.