Which of the following areas of research in psychology is concerned with understanding the role of the endocrine system in the regulation of behavior?

A theory that has well-defined concepts meets the criterion of ______________

Fill in the blank(s) with correct word

Baby Lindsay has combined her reaching, grasping, and sucking schemes into a higher-order scheme that allows her to reach for her pacifier and put it into her mouth. This achievement is an example of

a. organization. b. equilibrium. c. accommodation. d. assimilation.