Approximately How Often Does a Period of REM Sleep Occur

question 103

Multiple Choice

Approximately how often does a period of REM sleep occur?

• A) every 30 minutes
• B) every 60 minutes
• C) every 90 minutes
• D) every 120 minutes
• E) once per night

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Definitions:

Daytime Temperatures

The range of temperatures experienced during the daylight hours, which can vary widely depending on geographic location, season, and weather conditions.

Advancing Warm Air Mass

A body of warm air that moves into an area previously occupied by cooler air.

Grazing Mammals

Grazing Mammals are a group of mammals that primarily feed on grasses and other ground-level vegetation, playing a key role in ecosystems by shaping vegetation structure.

Occasional Fires

Fires that happen sporadically in ecosystems, which can play a natural role in shaping vegetation patterns, nutrient cycling, and habitat structure.