Following the end of the Middle Ages, astronomers such as Copernicus, Galileo, Tycho Brahe, and Johannes Kepler demolished the ancient geocentric model of the universe with the now familiar ____ model
a. solaricentric
c. unicentric
b. orbicentric
d. heliocentric
D
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In 1981, approximately ___________ of a child's day was free time; by the late 1990s, only ___________ of a child's day was unscheduled
a. 40%; 25% c. 75%; 40% b. 80%; 50% d. 50%; 50%
The reason that REM sleep occurs is:
a. to allow the mind to solve the day's problems during sleep. b. to allow memories to form. c. to release tensions from the previous day. d. unknown.
Jeanette misbehaves a lot because she has no real sense of the difference between right and wrong behavior. Psychologists would say that she has failed to develop:
a. autonomy b. a conscience c. initiative d. empathy
Marcia has just learned from her gynecologist that she has a chlamydia infection. He advises her to immediately begin antibiotic therapy. Marcia learns that without treatment she runs an increased risk of
A) cervical cancer. B) uterine cancer. C) kidney damage. D) infertility.