Where can the sagital keel be found?
a. above the eye orbits
b. along the midline frontal
c. on the back of the parietal
d. none of these
Answer d
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Most of the nations of the Americas gained their independence in the:
A) 17th century. B) 19th and 20th centuries. C) 16th century. D) 21st century. E) 18th and 19th centuries.
In ecological terms, a "limiting factor" in a given environment is
A) a lack of information that limits the extent to which technology can develop. B) an environmental property found only in poor ecosystems. C) a boundary that limits the territory that a population can occupy. D) a resource that is in short supply, hence limiting population growth, density, or permanence. E) none of the above.
An economic system is:
a. an organizational arrangement for producing and distributing goods b. an organizational arrangement for producing, distributing, and consuming goods c. a social model for trade of produced goods within agricultural and industrial societies d. a social process of distributing products within an industrial society
Stone tools include all of the following characteristics EXCEPT:
A. flake scars. B. bulbar surfaces. C. sharp edges. D. striking platforms.