During REM Sleep

question 2

Multiple Choice

During REM sleep,

• A) the brain is less active than at any other time.
• B) heart rate and breathing rate are low and steady.
• C) the muscles are tense and active.
• D) dreaming is likely to occur.

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Definitions:

Normal Profits

The level of profit necessary to cover the costs of the inputs owned by the firm, acting as the minimum earnings to keep the firm in business.

Competitive Equilibrium

A state in a market where supply equals demand, with no external influences altering the price or quantity.

Constant-Cost Industries

Industries where the costs of production do not change as the total output increases or decreases.

Economic Efficiency

A state where resources are allocated in a way that maximizes the production of goods and services.