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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 Chintan Kotadiya
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1 Answer

3 votes
The body's first line of defense is the mucous membranes
User Kati
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