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High School Biology: The Immune System and Disease - Nonspecific Defenses
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High School Biology: The Immune System and Disease - Nonspecific Defenses
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10 Questions

1. Which statements are true about mechanical barriers? (1) Mechanical barriers physically block pathogens from entering the body. (2) The skin is the most important mechanical barrier. (3) Mucous membranes provide a mechanical barrier at body openings. (4) Mucous membranes secrete mucus, a slimy substance that traps pathogens.
2. Which statement best describes the immune system?
3. Which statement best describes nonspecific defenses?
4. The second line of defense
5. Chemical barriers include
6. Which statement is correct concerning mucous membranes?
7. The inflammatory response
8. The body’s most important barrier to pathogens is
9. Leukocytes
10. The immune system has ____________ lines of defense.

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