Which of the following is the best definition of sexual orientation?
A) a person's sex as determined by his or her genes
B) a categorization based on the gender of a person's sexual partners
C) a consistent preference for sexual relations with members of the same sex, opposite sex, or both
D) a categorization based on whether a person's behavior matches their biological sex or not
Answer: C
Rationale: Sexual orientation is a consistent preference for sexual relations with members of the opposite sex (heterosexuality), same sex (homosexuality), or either sex (bisexuality). Current definitions of sexual orientation focus on the psychological aspects of sexuality (e.g., desire, emotion, identification) rather than strictly behavioral criteria.
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Carl and "his amazing canines" are an act in the circus. Jumping through a fiery hoop is one of the acts. At the onset of this training, Carl reinforced the dogs for each movement toward the hoop. Eventually, they were reinforced as they neared the hoop. What is this an example of?
a. classical conditioning c. shaping b. escape conditioning d. avoidance conditioning
Cells in culture that are deprived of oxygen are more likely to survive in the presence of
A. GABA agonists. B. GABA antagonists. C. glutamate agonists. D. glutamate antagonists.
Shannon was so hungry that she found herself unable to concentrate on her studies
The only thing she could think of was food, which made it impossible to learn the material in her textbook. She decided to leave the library and eat dinner before returning to study again. Which of the following theories best describes Shannon's motivation to go eat dinner? a) the arousal theory b) the drive-reduction theory c) the Lazarus theory d) the James-Lange theory
How is leptin related to homeostasis?
A. It provides information to the hypothalamus. B. It regulates the balance of glucose and glycogen. C. It measures nutrient content in the stomach wall. D. It manages insulin response to high glycemic foods.