Stage 4 Sleep Occurs ________

question 201

Multiple Choice

Stage 4 sleep occurs ________.

• A) mostly in the first half of the night
• B) mostly in the second half of the night
• C) evenly throughout the night
• D) only during daytime naps

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Definitions:

Genus

In the system of plant and animal classification, a group of like species.

Mousterian Tools

Stone tools associated with Neanderthal cultures, known for their specific flaking technique.

Neandertal

An extinct species of human characterized by robust physical features, known to have lived in Europe and parts of Asia until about 40,000 years ago.

Homo Erectus

An extinct species of early human that lived from approximately 2 million to roughly 100,000 years ago, known for being one of the first hominins to use fire and sophisticated tools.