Which Statement Is True with Regard to the Duration of a Self-Generated

question 28

Multiple Choice

 Which statement is true with regard to the duration of a self-generated sleep/activity cycle?

• A) It is unreliable in most species, and dependably close to 24 hours only in primates.
• B) It is longer if the organism is normally active in the dark.
• C) It rarely varies from one individual to another, if at all.
• D) It is highly consistent in a given individual in a given environment.

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Definitions:

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An economic strategy where individuals or groups focus on a narrow area of expertise to increase efficiency and trade with others for different goods or services.