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Biology, 13.10.2019 16:20 1xXJOKERXx3

How do the body’s exterior lines of defense prevent illness? (7th grade science)

a) they prevent pathogens from entering the body.
b) they make antibodies to protect against new pathogens.
c) they warn the body that pathogens have entered the body.
d) they cause fevers so that the body is too hot for pathogens to survive.

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How do the body’s exterior lines of defense prevent illness? (7th grade science)

a) the...
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