A critical period in development occurs in the embryonic stage of prenatal development.

Rogers contended that people use the defenses of ________ and ________ when their experiences appear to be inconsistent with their self-structure.

a) reaction formation; rationalization b) sublimation; substitution c) repression; resistance d) denial; perceptual distortion

When different drugs are in the body at the same time, the combined effect can be greater than each drug taken alone. This is called a _____.

a.) Antagonistic action b.) Polysubstance rush c.) Pharmacological potentiation d.) Synergistic effect