tiabreo1rgirl7 tiabreo1rgirl7

14-01-2016
Biology

contestada

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

Respuesta :

Lakilister Lakilister

14-01-2016

D, Mucous membranes are not within the body, thus they are the first of all the options that would encounter pathogens.

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