How Long Is a Typical Sleep Cycle,in Which a Sleeper

question 107

Multiple Choice

How long is a typical sleep cycle,in which a sleeper progresses through some or all of the sleep stages?

• A) 1 hour
• B) 90 minutes
• C) 2 hours
• D) several hours

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Definitions:

Consumer Demands

The desire, willingness, and ability of consumers to purchase goods and services at various price levels.

Market System

A market mechanism where the allocation of resources for investment, production, and distribution is driven by the forces of supply and demand, with the pricing of goods and services set freely within the market.

Minimize Cost

The process of finding the most efficient level of production, where the combination of inputs results in the lowest possible cost.

Unit of Output

The basic measure of productivity or product which is generated by a production process, operation, or project.