The ob mouse becomes obese because it lacks the gene that normally produces __________.
A. CCK
B. leptin
C. insulin
D. NPY
Answer: B
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Recall Muzafer Sherif's research with two groups of 11-year boys camping at Robber's Cave (the "Eagles" and the "Rattlers"). Which of the following theories best accounts for the kind of prejudice that existed between these groups?
a. The contact hypothesis b. Realistic conflict theory c. Social dominance theory d. Symbolic politics theory
______ is a sample chosen from the population, such that available individuals are chosen with equivalent proportions of individuals for a specific characteristic in the population and sample.
A. Quota sample B. Random sample C. Volunteer sample D. Purposeful sample
What is a common denominator in drugs of abuse such as cocaine, opiates, and amphetamines?
a) These drugs stimulate GABA, which makes us feel relaxed. b) These drugs stimulate reuptake of serotonin, which induces a high. c) All of these drugs stimulate release of dopamine in the brain's reward circuits. d) All of these drugs stimulate release of norepinephrine in the brain's reward circuits.
Which of the following memory strategies draws upon existing information?
A. Elaborative rehearsal B. Maintenance rehearsal C. Chunking D. Proactive encoding