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:

Economy's Output

The total value of all goods and services produced within an economy over a certain period.

Creative Destruction

A concept in economics where innovation leads to the demise of older technologies or industries, driving economic growth.

Medium of Exchange

An item that is widely accepted in transactions for goods and services because it simplifies trade and eliminates the need for a coincidental wants barter system.

Capital Good

Long-term assets used in the production of goods and services, such as machinery, buildings, and equipment.