Symbols are arbitrary
a. True
b. False
ANSWER: True
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Phylogenetic reconstructions based on genetic markers suggest that modern humans __________
a. did not evolve much beyond archaic Homo b. evolved in a single location c. evolved in the same region of the Old World d. evolved in multiple locations
Eugene Dubois concurred with the decision to call both Pithecanthropus and Sinanthropus Homo erectus
Indicate whether the statement is true or false
Apes generally nurse their young for how long?
a. 6 months b. 1 year c. 2-3 years d. 4-5 years e. 6-7 years
Traditional racial classification assumed that biological characteristics such as skin color were determined by heredity and remain stable over many generations. We now know that
A. a biological similarity such as skin color is always the result of both a common ancestry and natural selection. B. skin color is actually determined throughout child development. C. a biological similarity such as skin color is also the result of natural selection working among different populations that face similar environmental challenges. D. skin color is determined by sun exposure and the amount of melanin in our diets. E. skin color is determined by a single gene that is prone to mutations over many generations.