Because the Appendix Is a Narrow Tube, It Traps Microorganisms

question 111

Multiple Choice

Because the appendix is a narrow tube, it traps microorganisms from the digestive tract, and these microorganisms enter its wall and activate memory lymphocytes for long -term immunity. Another immune organ that traps microorganisms is the

• A) the spleen.
• B) palatine tonsil.
• C) thymus.
• D) bone marrow.

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Definitions:

Concept

An abstract idea or a mental symbol typically associated with a corresponding object in the real world.

Variable

An element, feature, or factor that is liable to vary or change within the context of a mathematical expression, experiment, or statistical analysis.

Values

Core principles or standards that guide behavior and decision-making.

Ratio

A relationship between two numbers indicating how many times the first number contains the second.