An Oxygen Level Below ____% May Result in Unconsciousness

question 13

Multiple Choice

An oxygen level below ____% may result in unconsciousness.

• A) 10
• B) 13
• C) 19
• D) 25

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Definitions:

Antigens

Substances that provoke an immune response, leading to the production of antibodies as part of the body's defense against infections and diseases.

Cancer Cells

Abnormal cells that divide uncontrollably and may invade nearby tissues or spread to other parts of the body.

Antigen

A foreign invader of the body, such as a bacterium or virus.

Foreign Invader

An external agent, often microscopic, that enters the body and can cause disease or trigger an immune response.