Which of the following is an example of the body's defense against infection?
A) Racial characteristics
B) Body shape and size
C) Immune response
D) Level of susceptibility
Ans: C
The body has various defenses against infection, including normal flora and the inflammatory response. One of the most effective is the immune response, which involves specific reactions in the body as it responds to an invading foreign protein, such as bacteria. The foreign material is called an antigen, and the body commonly responds by producing an antibody. Race, body size and shape, and level of susceptibility do not affect defense against infection.
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