Free radicals are capable of reacting violently with other molecules, sometimes tearing them apart

Alex, a freshman in college, wants to know how many of her

dormmates have tried marijuana, so she decides to survey everyone on her floor. Despite rumors to the contrary, the results suggest that fewer than ten percent of her classmates have tried the drug. What is the most likely explanation for her findings? A) People often distort their answers or fail to tell the complete truth when surveyed. B) Her dormmates did not understand the question. C) Alex did not calculate the findings correctly. D) Surveys are not an acceptable means to gather new information.

Each of the following is an example of health disparities in the United States EXCEPT:

a. infant death rates among African Americans when compared to European Americans b. rate of death for heart disease of African Americans as compared to European Americans c. men dying at a younger age than women. d. tuberculosis rates are higher in minority ethnic groups as compared to European Americans