Humans sometimes scavenged food, but they were never tertiary scavengers
a. True
b. False
Indicate whether the statement is true or false
False
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In what type of societies are extended-family households found most frequently?
A) sedentary agricultural economies B) post-industrial Western societies C) semi-nomadic herding cultures D) traveling food collector bands
Some crops actually grow better when they are planted beside other crops
a. True b. False Indicate whether the statement is true or false
Seriation uses what principle to determine the ages of materials?
a. patterned changes in material culture b. material similarity c. faunal correlation d. the principle of superposition e. radiocarbon decay
The global dangers to ecosystems from _______ are potentially as great as global warming, so much so in fact that some marine biologists have termed it "the other CO2 problem."
a. ocean concentration b. ocean acidification c. ozone extermination d. fluorocarbon production e. water evaporation