The Body's First Line of Defense Against Pathogens Includes

question 12

Multiple Choice

The body's first line of defense against pathogens includes

• A) mucous membranes.
• B) B cells.
• C) macrophages.
• D) mast cells.

---

Definitions:

Unique

Being the only one of its kind; unlike anything else.

Housing Markets

The supply and demand for residential properties and the economic factors affecting the price and availability of homes.

Crime Rates

The number of crimes committed per unit of population within a given time frame.

Economic Growth

An increase in a country's output of goods and services over time, often measured as the rate of change in real GDP.