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Immune System and Defenses Quiz

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Questions and Answers

What are the physical barriers in the body's defense system?

Skin, epithelial linings, and cilia

What are the two types of immune response?

Active and passive immunity

What are the steps in immune defense?

Detect invader/foreign cells, communicate alarm & recruit immune cells, suppress or destroy invader, discrimination of self from non-self

What is the main ability at the heart of the immune response?

<p>The ability to distinguish between self and non-self</p> Signup and view all the answers

What is the quote emphasizing the importance of the immune system's ability to discriminate between foreign and host cells?

<p>"The success of the immune system depends on its ability to discriminate between foreign (nonself) and host (self) cells. Survival requires both the ability to mount a destructive immune response against nonself and the inability to mount a destructive response against self."</p> Signup and view all the answers