Which of the Following Statements About the Physiological Changes Associated

question 20

Multiple Choice

Which of the following statements about the physiological changes associated with aging is TRUE?

• A) There is a 25 to 30 percent increase in kidney mass due to hypertrophy.
• B) Impaired insulin use and glucose metabolism result in weight loss.
• C) Decreased elasticity of the lung tissue results in a smaller lung volume.
• D) Blood vessel walls thicken, reducing blood flow to end organs and causing blood pressure to rise.

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Definitions:

Price Taker

An individual or company that must accept prevailing prices in the market, having no influence over them.

Perfect Competition

A market structure characterized by a large number of small firms, a homogeneous product, and very easy entry and exit, leading to firms being price takers.

Natural Monopoly

A market condition where a single firm can supply a product or service at a lower cost than two or more firms, due to economies of scale.

Economies of Scale

The cost advantages that enterprises obtain due to size, output, or scale of operation, with cost per unit of output generally decreasing with increasing scale.