After 30 Minutes of Sun Exposure, Which of the Following

question 33

Multiple Choice

After 30 minutes of sun exposure, which of the following people would have synthesized more vitamin D?

• A) a light-skinned person
• B) a dark-skinned person
• C) neither, because skin pigmentation is not related to vitamin D synthesis
• D) they would both synthesize the same amount
• E) a heavily-wrinkled person

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Definitions:

Unknown Quantity

An undetermined or unspecified value in mathematics that needs to be solved or identified.

Fraction Form

Fraction form is a way to represent numbers by showing how many parts of a whole are there, typically written with one number over another, separated by a line.

Proportion

A relationship between two quantities denoting their ratio.

Securities

Financial instruments that represent an ownership position in a publicly-traded corporation (stock), a creditor relationship with a governmental body or a corporation (bond), or rights to ownership as represented by an option.