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California Standards Biology


Standard 10a Preknowledge

10a) Students know the role of the skin in providing nonspecific defenses against infection.

CALIFORNIA FRAMEWORKS SUMMARY:

The skin serves as a physical barrier to prevent the passage of many disease-causing microorganisms. Cuts and abrasions compromise the skin’s ability to act as a barrier. Teachers can use charts and overhead projections to show the dangers and physiologic responses of a break in the skin.