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Which of the following are part of the body’s first line of defense against pathogens? A.white blood cells B.red blood cells C.lymph nodes D.mucous membranes
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Which of the following are part of the body’s first line of defense against pathogens?

A.white blood cells

B.red blood cells

C.lymph nodes

D.mucous membranes

User Amol Katdare
by
7.9k points

1 Answer

3 votes
the answer is A
white blood cells
User PHLAK
by
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