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OpenStudy (anonymous):
Which body system protects the body against invasion by pathogens? A. nervous system B. muscular system C. excretory system D. immune system
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OpenStudy (anonymous):
I think its immune
OpenStudy (shiburinga):
D. yep ur right xD
OpenStudy (anonymous):
Thanks :P
OpenStudy (shiburinga):
np xP
OpenStudy (anonymous):
Thanks I got 100% on my assessment!
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OpenStudy (shiburinga):
:D
OpenStudy (shiburinga):
Good job :P
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