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Which part of your brain is active when you get cues about being hungry, thirsty, or sleepy?
- A. Hippocampus
- B. Thalamus
- C. Hypothalamus
- D. Amygdala
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.
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A psychologist who is interested in the psychological effect of aging would most likely specialize in?
- A. Developmental psychology.
- B. Experimental psychology.
- C. Cognitive psychology.
- D. Psychometrics.
Correct Answer: A
Rationale: A psychologist interested in the psychological effect of aging would most likely specialize in developmental psychology. Developmental psychology focuses on studying the psychological changes that occur throughout a person's lifespan, including the effects of aging. Experimental psychology primarily deals with conducting experiments to study behavior and cognitive processes. Cognitive psychology focuses on mental processes like perception, memory, and problem-solving. Psychometrics involves the measurement of psychological variables such as intelligence, aptitude, and personality traits, but it does not specifically address the psychological effects of aging as in developmental psychology.
What are substances, such as viruses and drugs, that can cause birth defects?
- A. Teratogens
- B. Placenta
- C. Parturition
- D. Androgens
Correct Answer: A
Rationale: Teratogens are substances that can cause birth defects, especially if exposure occurs during critical periods of development. In this context, teratogens refer to external agents that can interfere with the development of the embryo or fetus, leading to structural or functional abnormalities. Choice B, Placenta, is incorrect as it is an organ that develops during pregnancy to provide nutrients and oxygen to the fetus and remove waste products. Choice C, Parturition, refers to the process of giving birth and is not related to substances that cause birth defects. Choice D, Androgens, are male sex hormones and are not associated with causing birth defects.
With which of the following statements would a behaviorist agree?
- A. Conscious experiences can be studied in an objective, precise way.
- B. In order to understand behavior, one must understand the motives behind the behavior.
- C. Behavior can only be explained in terms of phenomenology, that is, an individual's interpretation of experience.
- D. Psychology should be the science of behavior that can be observed by others.
Correct Answer: D
Rationale: The correct answer is D. Behaviorists argue that psychology should focus on observable behavior that can be studied objectively. Choice A is incorrect because behaviorists do not typically focus on conscious experiences, as they are not directly observable. Choice B is incorrect because behaviorists emphasize that behavior can be understood without delving into internal motives. Choice C is incorrect as behaviorists do not exclusively explain behavior through an individual's interpretation of experience; they focus on observable actions and reactions.
Who took the position that organisms tend to repeat responses that lead to positive outcomes and tend not to repeat responses that lead to neutral or negative outcomes?
- A. Sigmund Freud
- B. B.F. Skinner
- C. Carl Rogers
- D. Abraham Maslow
Correct Answer: B
Rationale: The correct answer is B.F. Skinner. Skinner proposed the theory of operant conditioning, where behavior is shaped by its consequences. Positive outcomes increase the likelihood of a behavior being repeated, while neutral or negative outcomes decrease it. Sigmund Freud (choice A) is known for his psychoanalytic theory, Carl Rogers (choice C) for person-centered therapy, and Abraham Maslow (choice D) for the hierarchy of needs.
In order for one to have a recessive trait (e.g., having red hair), the person must receive?
- A. At least one copy of a recessive gene from a parent
- B. Two copies of a recessive gene, one from each parent
- C. At least one copy of a recessive gene and at least one copy of a dominant gene
- D. At least two copies of a recessive gene from one parent
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.