Physical and Chemical Barriers That Form the First Line of Innate

question 30

Multiple Choice

Physical and chemical barriers that form the first line of innate defense include

• A) the acidity of the stomach.
• B) tear fluid from the eye.
• C) an un-punctured skin.
• D) mucus and cilia of the respiratory tract.
• E) All answers are correct.

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Definitions:

Mutually Agreeable

A situation or outcome in negotiations or agreements that all parties involved accept and are satisfied with.

Cap-And-Trade

An environmental policy tool that aims to reduce pollutants by setting a limit (cap) on emissions and allowing companies to buy and sell permissions (trade) to emit up to a certain limit, incentivizing pollution reduction.

Property Right

Legal rights to use, control, and derive benefits from a resource or property.

Pollution

The introduction of harmful substances or products into the environment, causing adverse effects on living organisms and ecosystems.