kaykay211 kaykay211

11-10-2016
Health

contestada

what is the body's first defence against infection and viruses

A: saliva, mucus, and hairs
B:antibodies
C:lymphocytes
D: lymph nodes

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pandamille pandamille

12-10-2016

What is the body's first defence against infection and viruses?
A: saliva, mucus, and hairs

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