Piaget acknowledged that __________ is our most flexible means of mental representation

What process is exhibited by an animal that learns to respond differently to two different stimuli?

a) extinction b) acquisition c) generalization d) discrimination

According to the chapter The Nose Knowsabout the scent of symmetry, women are most likely to become

pregnant on days __________ of their menstrual cycle. (a) 1-5 (b) 6-14 (c) 15-22 (d) 23-30