[Solved] Which of the following is governed by the reality principle? A)id B)superid C)superego D)ego Primates: An order of mammals that includes humans, apes, monkeys, and prosimians, characterized by large brains, forward-facing eyes, and opposable thumbs. Mammals: Warm-blooded vertebrate animals characterized by the presence of mammary glands which, in females, produce milk for feeding their young. Sexual Response Cycle: The series of psychological and physiological responses that comprise sexual arousal and activity, including stages such as excitement, plateau, orgasm, and resolution. Sexual Tension: Feelings of erotic desire or attraction toward another person, often accompanied by discomfort or unease due to unfulfilled desire.