Traits that are controlled by _____ genes are usually "either/or" phenotypes (e.g., being color blind or not being color blind, having a blood clotting disorder or not having a blood clotting disorder)

Prenatal tobacco exposure is linked to

A) a predisposition to nicotine addiction during adolescence. B) impaired heart rate and breathing during sleep, infant death, and asthma. C) deformed facial features and poor vision. D) delayed language development and poor fine-motor skills.

Which of the following terms explains a young adult's belief that she is too lucky to die, even though she knows that death can happen to other people?

A) A borderline personality disorder B) Denial C) Egocentrism D) Unique invulnerability