Which of the following statements best describes changes during the past five centuries?
a. This period has been marked by the reduction of human diversity to a single species.
b. During this time, humans have first faced cultural change and diversity.
c. This has been a period of radical culture change.
d. Humans have migrated from African into Europe during this period.
e. Humans have evolved during this time into bipedal walkers.
c
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Problems associated with the so-called thrifty-gene are associated with __________
a. HIV and AIDS b. cancer and lymphoma c. diabetes, diets of excess, and obesity d. malaria, sickle cell disease, and typhoid fever
Why is Sahelanthropus tchadensis important in understanding evolution? What evidence is missing which is required to identify the species as a true hominin?
What will be an ideal response?
The position of a chimpanzee in a dominance hierarchy is affected by all of the following except:
a. physical strength and size. b. rank of the chimpanzee's mother. c. motivation. d. intelligence. e. color of fur.
PCB contamination in breast milk is nowhere higher than among the:
a. Australian aborigines. b. Apache. c. Yanomamo. d. Inuit. e. Navajo.