An Animal Body's Automatic Maintenance of a Constant and Optimal

question 43

Multiple Choice

An animal body's automatic maintenance of a constant and optimal internal environment is termed

• A)positive feedback.
• B)negative feedback.
• C)homeostasis.
• D)thermoregulation.

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Definitions:

Variable Cost

A cost that changes in direct proportion to changes in the level of business activity or output.

Fixed Cost

A cost that does not vary with the level of production or sales, such as rent, property taxes, and salaries.

Least-Squares Regression

A statistical technique used to determine the line that best fits a set of data points, minimizing the sum of the squares of the differences between the observed and estimated values.

Variable Cost

Expenses that change in direct proportion to the amount of production or the quantity of output generated.