Luis is eight years old. He is becoming quite good at arguing with his parents over what his bedtime should be, whether he has eaten enough of his supper to have dessert, etc. He loves toys and projects that involve hands-on learning. According to Piaget, Luis is in the ____ of cognitive development.

Neurosis occurs when we strive for personal superiority instead of healthy, constructive achievement

Indicate whether the statement is true or false.

Tara and Boris, expectant parents, wonder about the endless possibility of traits their unborn son might inherit from them (e.g., Tara’s red hair and allergies; Boris’s tall frame and poor eyesight). As a genetics expert, you tell them that after cell division, the egg or sperm contains _____ chromosomes; thus, a male or female can produce _____ different combinations of his or her

chromosomes. a. 23; 2²³ b. 23; 23² c. 46; 2⁴⁶ d. 46; 46²