WGU D115 .
Western Governors University
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WGU D115 OBJECTIVE ASSESSMENT (OA) EXAM STUDY QUESTIONS AND ANSWERS 2025
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What are the 3 layers of human defense? What happens during each? -Correct Answer Physical- protect against damage and infection are composed of tightly associated epithelial cells including those of the skin and of the membranous sheets lining the gastrointestinal, genitourinary, and respiratory tracts. Mechanical- "washing" the surfaces (sloughing off of dead skin, vomiting, urination, coughing). Biochemical barriers- secrets substances meant to trap of destroy microorganisms. (Mucus, sw...
Exam (elaborations)
WGU D115 OBJECTIVE ASSESSMENT (OA) EXAM STUDY QUESTIONS AND ANSWERS 2025
Last document update:
ago
What are the 3 layers of human defense? What happens during each? -Correct Answer Physical- protect against damage and infection are composed of tightly associated epithelial cells including those of the skin and of the membranous sheets lining the gastrointestinal, genitourinary, and respiratory tracts. Mechanical- "washing" the surfaces (sloughing off of dead skin, vomiting, urination, coughing). Biochemical barriers- secrets substances meant to trap of destroy microorganisms. (Mucus, sw...
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