Brain expansion led directly to the emergence of stone tools in Homo.
a. true
b. false
Answer: b. false
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Regarding the example of the peppered moth, which of the following is not true?
a. The two color patterns resulted from genetic variation in the species. b. The dark is more visible on the trees darkened by pollution. c. The most common variety of the peppered moth in England, prior to the 19th century, was a mottled gray color. d. Natural selection acted upon pre-existing variation in the population. e. It has recently come under criticism.
Aymara has more than 200 words for potato
a. True b. False Indicate whether the statement is true or false
The Nordic folk tale at the beginning of the chapter is about the reversal of traditional gender roles with a ___________ result
a. productive b. comic c. deadly d. tragic
In some countries, the informal economy generates as much as 40% of the GNP
a. True b. False