45. What is silia. 1.) rokboriwen skin disinfectant 2) swallowed germs into the body. 3) prevents microorganisms into the respiratory tract 4) prevent the nasal passages to the stomach.
45. Celia do? 1) antibacterial skin 2) swallowing germs that enter the body 3) protect against microbes that enter the respiratory tract 4) prevent foreign matter into the stomach.