| A | B |
| cognitive psychology | studies mental processes |
| humanistic psychology | focuses on individual free will |
| psychoanalysis | studies the unconscious mine |
| behaviorism | focuses on observable behavior |
| gestalt psychology | studies mind &behavior as one |
| How does behavior occur? | mechanism |
| Behavior changes in individual? | ontogeny |
| animal benefits from new behavior? | adaptive value |
| How does the behavior evolve? | phylogeny |
| First to stand upright on two feet | Australopithecus |