liliauedt
liliauedt
06.05.2020 • 
English

Identify how the physical barriers of the immune
system protect the body against pathogens.
Check all that apply.
your nose produces oil to keep pathogens
from entering the body through your nose
skin contains tightly packed cells
skin is tough, flexible, and waterproof
you cough when a pathogen enters your
mouth
you sneeze when a pathogen enters your
nose
DONE

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