If It Were Not for the Nasal Cavity

question 39

Multiple Choice

If it were not for the nasal cavity,

• A)we would not be able to speak.
• B)more debris would enter the lungs.
• C)oxygen would not be exchanged in the alveoli.
• D)food would go down the wrong pipe.
• E)air would not be conducted to the lungs.

Assess the effect of external changes (such as price changes or external costs) on the perceived benefits and costs associated with an activity.

Distinguish between constant, increasing, and decreasing marginal costs and benefits.

Calculate total profit or benefit given data on marginal costs and benefits.

Evaluate decisions using the concept of opportunity cost and sunk costs.