What brain abnormality is seen in people with anorexia and bulimia nervosa?
A. increased serotonin receptors in the hypothalamus
B. increased dopamine receptors in the ventral striatum
C. decreased 5HT1A receptors in the subgenual prefrontal cortex
D. increased cannabinoid receptors in the insula
Answer: D
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How is body mass related to the onset of menstruation?
A. Body mass is unrelated to the onset of puberty; rather, onset is caused by the concentration of stress hormones in the body. B. Girls with a higher percentage of body fat may start menstruating later than girls with a lower percentage of body fat. C. Rapid weight gain during the period just before puberty (ages 7 to 9, typically) causes earlier onset of menstruation. D. Girls with a lower percentage of body fat may start menstruating later than girls with a higher percentage of body fat.
The correlation between physical attractiveness and happiness is
a. negative. b. moderately positive. c. strongly positive. d. negligible.
The primary intention of an IQ test is to predict ____
a. ?school performance b. ?the ability to adapt c. ?creative genius d. ?the ability to overcome obstacles
Which are the two most common reasons that American adolescents live with only one of their biological parents?
A) Death of a parent and divorce B) Unwed single parent and death of a parent C) Parents living apart and unwed single parent D) Unwed single parent and divorce