Without sea ice in the summer, _____ and several other species that depend on it may very well become extinct in the foreseeable future
a. grisly bears
b. artic cats
c. Gentoo penguins
d. polar bears
e. emperor penguins
D
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An advantage of the accelerator mass spectrometer (AMS) method of radiocarbon dating is
a. although not as precise as standard dating methods that count beta decays, AMS dating is less subject to problems caused by atmospheric fluctuations in 14C. b. AMS dating is much cheaper than standard dating methods that count beta decays. c. AMS dating requires much smaller carbon samples than standard dating methods. d. AMS dates are easier to calibrate than standard radiocarbon dates. e. that it can date to 100,000 years or more.
Every culture recognizes distinctions between male and female
Indicate whether the statement is true or false
Which of the following illustrates an ideal cultural trait in U.S. society that does not correspond to practical reality?
A) People of all classes and races are equal before the law. B) Most children will go off to college, marry, and start households of their own. C) Workers take the weekend off to have a chance to relax. D) Children call their mothers on Mother's Day.
The main difference between egalitarian and ranked societies is that in ranked societies:
a. there are never marked differences in wealth among the classes. b. there are no differences in status based on age and sex. c. there are a fixed number of statuses into which only certain individuals are recruited. d. leadership statuses are less formal and more open to all.