Why Do Many Diving Mammals Allow Their Lungs to Collapse

question 5

Multiple Choice

Why do many diving mammals allow their lungs to collapse during the dive?

• A)The high pressure forces lung collapse.
• B)It prevents water entry.
• C)It prevents nitrogen narcosis.
• D)The gas pressure in the lungs would damage alveoli.

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Definitions:

Corn Laws

The tariffs, subsidies, and restrictions enacted by the British Parliament in the early nineteenth century to discourage imports and encourage exports of grain.

Imports

Products or services imported from one country into another for the purpose of selling or utilization.

Exports

Goods or services produced in one country and sold to buyers in other countries.

Bushel

A unit of volume that is used in the United States for measuring agricultural commodities, such as grains.