Variations in human skin color ______.

A. balance the dangers of exposure to sunlight with the need for vitamin D
B. have no relationship to climate or geography
C. are inversely related to the concentration of melanin: the greater the melanin, the lighter the skin
D. have clear and definite points of demarcation


Answer: A

Sociology

You might also like to view...

Corporate capitalism operates beyond society's laws and legal attempts to regulate corporate behavior have generally been unsuccessful

Indicate whether the statement is true or false

Sociology

One can visually check for skewness by looking for

A) long tails going off to the right. B) long tails going off to the left. C) separated scores in the histograms. D) All of the above

Sociology

The tendency to romanticize the idea of family has included ideas about children and childhood. What would historical research lead us to predict about the lives of children in premodern United States or Europe?

a. They worked at an early age or left the family at an early age to do domestic work for others. b. They were treasured and treated as angels or cherubs. c. The vast majority of them experienced a great deal of permanence and stability. d. Most of them lived in fairly large households with extended family.

Sociology

The political battles surrounding mental health care in the United States focus largely on __________.

A. defining the problem B. the issue of parity in insurance coverage C. laying blame D. agency reorganization

Sociology