According to the U

question 23

Multiple Choice

According to the U.S. Endangered Species Act (ESA) , the difference between an endangered species and a threatened one is that

• A) an endangered species is closer to extinction.
• B) a threatened species is closer to extinction.
• C) threatened species are endangered species outside the U.S. borders.
• D) endangered species are mainly tropical.
• E) only endangered species are vertebrates.

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Definitions:

Expiratory Reserve Volume

The maximum volume of air that can be forcibly exhaled after the completion of a normal, quiet exhalation.

Total Lung Capacity

The maximum amount of air the lungs can hold, including inspiratory and expiratory reserve volumes and the tidal volume.

Capillaries

The smallest blood vessels in the body, which facilitate the exchange of water, oxygen, carbon dioxide, and many other nutrient and waste substances between blood and surrounding tissues.

Alveoli

Clusters of air sacs in which the exchange of gases between air and blood takes place; located in the lungs.