Exam 4 Psychology

Correct Answer: B

Rationale: The correct answer is B. Individuals with bulimia nervosa may maintain a normal body weight, while anorexia nervosa is often associated with severe underweight. Choice A is incorrect because individuals with anorexia nervosa actually face severe health risks due to malnutrition, electrolyte imbalances, and other complications. Choice C is incorrect as anorexia nervosa is characterized by restriction of food intake rather than binge eating. Choice D is incorrect as individuals with anorexia nervosa can also display compensatory behaviors such as excessive exercise or fasting.

Correct Answer: D

Rationale: The correct answer is D, Clinical psychology. Clinical psychology specifically deals with the diagnosis and treatment of psychological disorders. Industrial psychology (choice A) focuses on behavior in the workplace, social psychology (choice B) studies how people's thoughts, feelings, and behaviors are influenced by the actual, imagined, or implied presence of others, and developmental psychology (choice C) is the study of how and why people change over time.

Correct Answer: A

Rationale: Nonnormative influences refer to unusual events that have a significant impact on individuals' lives by disrupting the typical life cycle. They are events that are not typical for a specific age or cohort. Normative history-graded influences (choice B) are common influences shared by a specific generation due to historical circumstances. Normative age-graded influences (choice C) are typical events that occur at a particular age for most people. A sensitive period (choice D) is a biologically determined time during which specific experiences have a lasting impact on development.

Correct Answer: B

Rationale: Recessive traits are expressed when an individual inherits two copies of the recessive gene, one from each parent. Therefore, the correct answer is B. Choice A is incorrect as one copy of a recessive gene is not sufficient to display a recessive trait. Choice C is incorrect because having at least one copy of a dominant gene is unrelated to expressing a recessive trait. Choice D is incorrect because two copies of a recessive gene must come from both parents, not just one.

Correct Answer: C

Rationale: The correct answer is the Hypothalamus (Choice C). The hypothalamus plays a crucial role in regulating basic bodily functions such as hunger, thirst, and sleep. It receives cues related to these needs and helps to maintain homeostasis in the body. The Hippocampus (Choice A) is primarily involved in memory formation and spatial navigation, not in regulating physiological needs. The Thalamus (Choice B) acts as a relay station for sensory information but is not the main center for hunger, thirst, or sleep regulation. The Amygdala (Choice D) is more associated with emotions, particularly fear and pleasure, rather than physiological needs like hunger, thirst, or sleep.