Which of the following is true regarding the attraction of smoking?
a. ?Most tobacco users begin smoking in their mid-20s as a way of feeling fully independent.
b. ?Nicotine has the ability to stimulate the dopamine reward circuits of the brain and to produce a particularly unpleasant set of withdrawal symptoms.
c. ?Young people who start smoking are usually trying to rebel and look “different” from their peers and family.
d. ?Nicotine has the ability to increase alertness temporarily without any side effects.
ANSWER:
b
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Which has NOT been proposed as a key factor in explaining why personality is so stable across the lifespan?
a. Heredity b. Lasting effects of childhood c. Biological factors like diseases d. The tendency of environments to remain stable
Research has found that the processes of forming prototypes and matching things to prototypes:
A. go on at a conscious level B. go on at an unconscious level C. are influenced by grades in school D. are influenced by the proficiency of one's memory system
Russell's mom wants him to study for two hours each night, so she gives him treats during the evening. Sometimes she gives him the treats after ten minutes, sometimes after thirty minutes. On an average, Russell is given a treat every twenty minutes. Which reinforcement schedule is Russell's mom utilizing?
A. Fixed-ratio B. Variable-ratio C. Fixed-interval D. Variable-interval
A comma-shaped organ that sits atop the testicle and holds sperm during maturation is known as the ____
a. epididymis c. urethra b. vas deferens d. Cowper's gland