The thrifty genotype allowed humans to stay lean, muscular, and highly mobile
a. True
b. False
Indicate whether the statement is true or false
False
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Which of the following statements is most correct? The disintegration of the Roman Empire in the west brought with it:
a. the end of drama and theatre in the west b. the end of drama and theatre in the east c. the end of records of organized drama and theatre in the west d. the end of records of organized drama and theatre in the east f. none of the above
Vasodilation
a. reduce heat loss at the skin's surface. b. can be caused by exposure to cold temperatures and some drugs like alcohol inhibits it. c. is the widening or opening up of capillaries which, in turn, increases blood flow to the skin. d. Reduce libido. e. Is a myth.
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.
Shihuangdi was:
A. a philosopher who spoke out against Confucius. B. the person who first used wet-rice irrigation. C. the military leader who established the first Chinese dynasty. D. the renowned architect who designed the city of Ao. E. China's first emperor.