Dolphins Are Able to Sleep Without Drowning Because They

question 638

Multiple Choice

Dolphins are able to sleep without drowning because they

• A)have gills, like fish do.
• B)have a special opening that allows air in but not water.
• C)sleep on just one side of their brain at a time.
• D)inflate their bodies before sleep, which maintains them floating upright so they can breathe without taking in any water.

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Definitions:

Ileostomy

A surgical procedure that creates an opening in the abdomen for waste to exit the body from the ileum, bypassing the colon.

Ostomy Device

A medical appliance attached to the body to collect waste from a surgically created opening in the digestive or urinary systems.

Bedridden

The condition of a person who is unable to get up from bed due to illness, disability, or weakness.

Mineral Oil

A colorless, odorless petroleum derivative used as a laxative or to soothe skin.