External Respiration Is the

question 59

Multiple Choice

External respiration is the

• A) breathing of air from the atmosphere
• B) exchange of gases between the alveoli and blood
• C) mixing of gases in the upper respiratory tract
• D) incorporation of air through the skin
• E) breathing of air through the mouth

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Definitions:

Independent Variable

The variable causing a change in some other (dependent) variable.

Dependent Variable

A variable that changes as a consequence of a change in some other (independent) variable; the “effect” or outcome.

Interest Rate

The interest rate is the percentage charged on the total amount borrowed or earned, representing the cost of borrowing money or the reward for saving.

Investment

The act of allocating resources, usually financial, into something with the expectation of generating income or profit.