Biology and __________ form the cluster of "life sciences" according to Simonton

The major types of schizophrenic disorders include all of the following EXCEPT

a. undifferentiated. b. residual. c. organized. d. disorganized.

According to Freud, during the period from 18 months until 3 years of age, the dominant source of sensual pleasure is the ______

a. genitals c. mouth b. hands d. anus