Bacteria That Are Removed from the Upper Respiratory Tract by Cilia

question 48

Multiple Choice

Bacteria that are removed from the upper respiratory tract by cilia are often destroyed by

• A) lymphocytes in the saliva.
• B) filters lining the pharynx.
• C) stomach acid.
• D) lymph nodes at the base of the tongue.
• E) mucus in the trachea.

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Definitions:

Surplus

The situation in which the quantity of a good supplied is greater than the quantity demanded at the current price.

Price Ceiling

A legally imposed maximum price on goods or services, intended to prevent prices from rising too high.

Equilibrium Price

The market price where the quantity of goods supplied is equal to the quantity of goods demanded.

Price Ceiling

A legal maximum price that can be charged for a good or service, above which it cannot be sold.