[Solved] Irregular fluctuations in economic activity are known as the A)business cycle. B)broken window fallacy. C)tradeoff between inflation and unemployment. D)ten principles of economics. 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.