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The body’s inner surfaces are protected against penetration by ...

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A naïve lymphocyte ____.///The body’s inner surfaces are protected against penetration by ...

A naïve lymphocyte ____.

a) is bound directly to an antigen

B) has not yet bound to antigen

C) is an antigen-presenting cell

D) is a phagocyte

E) is inflammatory

The body’s inner surfaces are protected against penetration by harmful microorganisms by ____.

a) water permeable outer skin layers

b) watery mucus

C) high pH of gastric and vaginal environments

d)cilia

E)warm, moist environments

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A naïve lymphocyte ____.​///The body’s inner surfaces are protected against penetration by ...

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A naïve lymphocyte ____.///The body’s inner surfaces are protected against penetration by ...