Idiopathic Leukoplakia

question 92

Multiple Choice

Idiopathic leukoplakia

• A) is a malignant lesion of the oral mucosa.
• B) can be rubbed off with gauze squares.
• C) is caused by direct irritation, as in tobacco pouch keratosis.
• D) does not have a specific known cause.

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Definitions:

Inferior Goods

Goods for which demand decreases as the income of the consumer increases, being replaced by more expensive alternatives.

Income

Income refers to the earnings received regularly from employment or investment sources.

Demand Curve

A graph showing the relationship between the price of a good and the quantity demanded, typically downward sloping, indicating that as price decreases, demand increases.

Complement

A good or service that is used together with another good or service, which increases the demand for each other.