Defenses of the GI Tract Against Pathogens Include

question 82

Multiple Choice

Defenses of the GI tract against pathogens include

• A)mucus,acid,and saliva.
• B)secretory IgA and lysozyme.
• C)peristalsis.
• D)GALT.
• E)All of the choices are correct.

---

Definitions:

Marginal Revenue Product

The additional revenue generated from using one more unit of a variable resource in the production process.

Input Price

The cost associated with purchasing the raw materials or components required for production.

Marginal Product

The additional output that is produced by using one more unit of a factor, keeping all other factors constant.

Worker Productivity

The amount of goods and services that a worker produces in a given period of time.