The Human Body Uses Three Lines of Defense to Protect

question 102

Multiple Choice

The human body uses three lines of defense to protect against pathogens. Match each of the following categories of defense to the type of cell or mechanism involved in the defense. Answers may be used more than once.
-production of antibodies by plasma cells

• A)physical or chemical barrier
• B)specific defense mechanism
• C)nonspecific defense mechanism

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Definitions:

Herfindahl Index

A measure used to calculate the level of concentration in a market, by summing the squares of the market shares of each firm.

Greater Than

A mathematical symbol (>) denoting that a value on the left is larger than the value on the right.

Four Firms

Often refers to a concentration ratio in economics that measures the output or revenue share of the four largest firms within an industry.

Industry Table

A tabular representation of data that shows information specific to a particular industry, often including metrics like production, sales, and employment.