[Solved] An example of sexual behavior used for nonsexual purposes would be: A)a rapist using sex as an expression of power over a woman. B)engaging in sexual activity as an end in itself. C)renting a XXX movie on a Sunday afternoon for physical stimulation. D)engaging in sexual intercourse only when the female is potentially fertile. Genes: The basic physical and functional units of heredity, made up of DNA, that determine the characteristics of an organism. Environment: encompasses all the external physical and biological factors influencing an organism or community, including natural and built environments. Sick Role Model: A theoretical model that outlines the rights, obligations, and behaviors expected of individuals who are acknowledged as legitimately ill in society. Illegal Drug User: A person who uses substances that are forbidden by law due to their potential for abuse and harm.