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Barriers to Pathogens

Your body uses chemical and physical barriers as a first defense against infection.

Atoms Practice
Estimated3 minsto complete
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Practice Barriers to Pathogens
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Progress
Estimated3 minsto complete
%
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Germs and the Body
community Contributed
Lesson plan includes an introduction, exploration (activities take you to an interactive website, and readings), creating a comic strip, All necessary materials are provided as links in blue.
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