Human language developed as the result of genes and the opportunity to hear language during a sensitive period in early life. What type of explanation is this?

Erich Fromm's approach is best described as humanistic social analysis because it attempts a synthesis of the thoughts of

a) Freud and Adler. b) Freud and Jung. c) Adler and Jung. d) Freud and Marx.

The trichromatic and opponent process theories of color vision are not in conflict because each corresponds to __________

a) a different portion of the spectrum. b) the opposite half of perceivable colors. c) one type of color blindness. d) a different stage of visual processing.