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Biology 5 Online
OpenStudy (anonymous):

Describe THREE examples of what you would consider the first line of defense in the body. Describe the mechanism of protection for each

OpenStudy (anonymous):

Well, we have a certain defense that covers our entire body for one. Think of things like that.

OpenStudy (anonymous):

Epidermis for the outter layer and i guess the immune system would be another right?

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