The evolutionary development from australopithecines to homo habilis occurred some 2.5 million years ago, probably due to what reasons?
a. environmental charges
b. alien technology
c. development of agriculture and dietary changes
d. ingestion of excessive amounts of mercury
e. crossbreeding with other australopithecines specie
Ans: a
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The population of the precolonial Americas __________
A) is impossible to estimate with any confidence B) varied greatly by region C) was uniformly distributed across the continents D) was greatest in the Arctic and Great Basin
The center of Spanish commercial activity in Asia was
A. Melaka. B. Hawai`i. C. Manila. D. Batavia. E. Bombay.
The Chisholm Trail was one of the most famous trails used by cowboys to move cattle north where they were shipped to the East for the __________ and packinghouses.
Fill in the blank(s) with the appropriate word(s).
According to Katz, before the concept of heterosexuality emerged, most sexual acts were understood in terms of ______.
A. eroticism B. hermaphroditism C. procreation D. purity