Adults Spend About One-Quarter of Their Sleep in ________

question 22

Multiple Choice

Adults spend about one-quarter of their sleep in ________. They spend about half their sleep time in _________.

• A)REM sleep; stage N1
• B)REM sleep; stage N2
• C)stage N1; REM sleep
• D)stage N2; stage N1

Understand the development of the olfactory system.

Identify the origin of various glands in the human body.

Describe the embryonic development of the cardiovascular system.

Understand the development and maturation process of the integumentary system.

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Definitions:

Infant

A very young child or baby, typically from birth to one year of age, who is in the earliest stages of development.

Mongolian Spot

A benign, blue-gray birthmark, often appearing on the skin of the lower back and buttocks of infants, more common in those of Asian or African descent.

African American

An ethnic group of Americans with total or partial ancestry from any of the black racial groups of Africa.

Benign

A term used to describe conditions, tumors, or growths that are not cancerous and are unlikely to be harmful.