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.
Answer: C
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a. True b. False Indicate whether the statement is true or false
Lactose intolerance can be characterized by all of the following except:
a. ?can be influenced by the environment. b. ?has a genetic basis. c. ?results from the lack of lactase. d. ?is a good example of biocultural evolution. e. ?does not involve a person's ability to digest milk.
According to the textbook authors, the problems facing our planet reflect:
a. education policies. b. worrisome scientific overthinking. c. an adaptive strategy gone awry. d. defects in our understanding of the evolutionary process. e. problems inherent in biodiversity.
The transatlantic slave trade expanded to meet European demands for iron ore.
Answer the following statement true (T) or false (F)