The most common infertility problem in women is:
a. irregular ovulation or lack of ovulation.
b. endometriosis.
c. barriers to the passageways through which the ovum must pass.
d. PID.
A
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Unobtrusive measures strive to minimize __________ during naturalistic observation
a. experimenters' expectations b. inaccurate reporting c. interference with the behaviors being observed d. the time involved
Courtney believes that pulling regular "all-nighters" is an important part of being a college student, and she frequently goes all night without any sleep at all. Given what you know about sleep cycles and sleep deprivation, what else can you assume about Courtney?
A. She probably is just one of those people who don't need much sleep. B. She is a conscientious student who probably has a very high grade-point average C. She probably has a lower grade point average than most of her classmates and often feels depressed. D. She has probably maintained this same pattern of sleeping since childhood.
Great Aunt Mary has always been a "lark," getting up early, working busily during the day, and then going to bed relatively early. She recently had a slight stroke, and the only thing that seems different about her is that her normal periods of sleeping and waking have changed. Now, you never know when she will get up or when she will go to bed, and she is often up half the night but sleeping during the day. Given what you have learned about sleep and waking, which one of the following brain areas might have been affected by her stroke?
A. the rubrospinal tract B. the retinohypothalamic pathway C. the mesolimbicstriatal pathway D. the thalamopituitary pathway
Why has there been little change in the average height in Western countries over the last few decades?
a. The population has become overweight or obese, which negatively affects height. b. People in Western countries have been exposed to more diseases. c. People have reached the upper boundary of their reaction range for height. d. Evolutionary influences are causing all populations to decrease in height.