About __________ Percent of Internet Users Ages 15 and Older

question 219

Multiple Choice

About __________ percent of Internet users ages 15 and older shop online in the United States.

• A)19
• B)29
• C)48
• D)67
• E)90

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Definitions:

Coronary Artery

An artery that supplies blood to the heart muscle itself.

Lipitor

A prescription medication used to lower cholesterol and reduce the risk of heart attack and stroke.

Cholesterol

A waxy, fat-like substance found in all cells of the body, necessary for the creation of hormones, vitamin D, and substances that help digest foods.

Semilunar Valve

A type of heart valve with half-moon-shaped flaps that prevents blood from flowing back into the heart chambers after it has been ejected.