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Over the past 50 years, the incidence of anorexia nervosa has steadily increased. This is most clearly attributable to
cultural ideals of beauty that increasingly encourage thinness
The removal of a woman's ovaries may
contribute to decreasing sexual interest because her natural ________ level is _______.
Unlike in men, a high sex drive in women is likely to be associated with an increased same-sex attraction as well as an increased opposite-sex attraction. This best illustrates women's greater
Which theory most clearly emphasizes the importance of homeostasis in motivation?
The secretion of PYY _________ hunger and the secretion of orexin ________ hunger.
During which phase of the sexual response cycle does the refractory period begin?
the resolution phase
To lose some of the weight she gained from binge eating, Melissa uses laxatives and exercises until she is exhausted. Melissa most clearly demonstrates symptoms of
In a classic experiment, obese patients whose daily caloric intake was dramatically reduced lost only 6 percent of their weight.This limited weight loss was due, at least in part, to the fact that their dietary restriction led to a(n)
decrease in their metabolic rate
After spending years in the ocean, a mature salmon swims up its home river to return to its birthplace. This behavior is an example of
Some students work hard in school to attain high grades. This best illustrates the importance of
When pregnant sheep were injected with testosterone during a critical period of fetal development, their female offspring later demonstrated
When asked what is most necessary for a happy and meaningful life, most people first mention the importance of satisfying their ________ needs
One gene scan of 40,000 people worldwide identified a variant of a gene called FTO. This gene nearly doubles the risk of
Which theory of motivation most clearly emphasizes the importance of genetic predispositions?
According to researchers, which of the following would be the BEST advice or encouragement to offer someone who wants to lose excess weight?
"Reduce your weight gradually over a period of several months."
Lindsey is extremely afraid of becoming obese even though she is underweight. She often checks her body in the mirror for any signs of fat and refuses to eat most foods because she insists they are fatty or high in calories. Lindsey most clearly demonstrates symptoms of
Teenage girls are especially vulnerable to ________ because of their lower levels of protective antibodies.
The stress normally experienced by immigrants is lessened by chain migration. This best illustrates the importance of ________ needs.
Which of the following is NOT true with respect to sexual orientation?
With the help of a therapist, most people find it easy to change their sexual orientation
sexual response cycle
the four stages of sexual responding described by Masters and Johnson- excitement, plateau, orgasm, and resolution.
an enduring sexual attraction towards members of either one's own sex (homosexual orentiation) or the other sex (heterosexual orientation).
a tendency to maintain balanced or constant internal state; the regulation of any aspect of body chemistry, such as blood glucose, around a particular level.
hierarchy of needs
Maslow's pyramid of human needs, beginning at the base with physiological needs and then psychological needs.
the form of sugar that circulates in the blood and provides the major source of energy for blood tissues. When its level is low, we feel hungry.
sex hormones, such as estradiol secreted in greater amounds by females than buy males and contributing to female sex characteristics.
drive- reduction theory
the idea that a physiological need creates an aroused tension state (a drive) that motivates an organism to satisfy the need.
an eating disorder characterized bu episodes of overeating, usually of high-calories foods, followed by vomiting, laxative use, fasting, or excessive exercise.
significant binge-eating episodes, followed by distress, disgust, or guilt, by without the compensatory purging, fasting or excessive exercise that marks bulimia nervosa.
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