What Percent of the World's Nations Have at Least Five

question 12

Multiple Choice

What percent of the world's nations have at least five significant ethnic populations?

• A)0-10
• B)10-20
• C)20-30
• D)30-40
• E)over 40

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Definitions:

Folate

A B-vitamin essential for red blood cell formation, healthy cell growth and function, and the prevention of certain birth defects.

Vitamin K

A fat-soluble vitamin essential for the synthesis of proteins required for blood coagulation and the binding of calcium in bones and other tissues.

Hemoglobin

Hemoglobin is the iron-containing oxygen-transport metalloprotein in the red blood cells of most vertebrates, responsible for the red color.

Carboxyhemoglobin

Carboxyhemoglobin is a complex of carbon monoxide and hemoglobin that forms in red blood cells upon exposure to carbon monoxide, preventing normal oxygen delivery to the body.