According to the text, HIV has different effects in different populations because of all of the following EXCEPT:
A. health infrastructure.
B. economic and social variables.
C. access to health care.
D. sexual behavior.
Answer: D
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In which type of telephone interaction do callers have an advantage over the answerer from the beginning?
A calls between very close friends B calls from Telemarketers C calls from family members D calls from strangers E calls from non governmental organizations
Which of these gives an accurate example of a researcher's sampling universe?
A) An investigator wants to understand high school drop-out rates, so she draws her sample from all the high school students in her city. B) An investigator wishes to understand parents' vaccination decisions, so he reads a selection of papers already published on the anti-vaccination movement. C) A researcher hopes to explain the relationship between divorce rates and religious belief, so she interviews one divorced couple about their faith. D) A researcher plans to teach safe sex to teens, so he provides leaflets and workshops to local clinics.
The carrying capacity of an environment:
a. is the uppermost level of productivity that is ecologically sound in an environment. b. is solely determined by its technology, which can make an environment artificially sound. c. influences only foraging societies, although there are still realistic limits on all environments. d. refers only to the amount of wild plants and animals in an area. e. refers to the amount of humans that can be profitable settled in a given amount of space.
In South Africa's Blombos Cave, a 100,000-year-old paint factory was recently discovered. This find indicates that
A. modern behavior is much older than anthropologists once believed. B. artistic behaviors developed before anatomically modern bodies. C. humans made red paint for functional but not symbolic reasons. D. Neandertals created art and had symbolic thought. E. Neandertals used paint in different ways than anatomically modern humans.