The embryonic stage of prenatal development begins with fertilization and ends with the implantation of the fertilized egg in the uterus.

In the debate between "lumpers" and "splitters" regarding anxiety disorders, the splitters argue that

a. people with anxiety disorders are split off from reality. b. people with anxiety disorders show signs of split personality. c. it is not possible to separate normal from pathological anxiety. d. there are a number of separate disorders.

Community psychology, educational psychology, military psychology, consumer psychology, health psychology, and space psychology are all examples of

a. applied psychology. b. biopsychology. c. comparative psychology. d. developmental psychology.