Answer:
The cilia is one of the things that act defensively in the respiratory system.
Explanation:
It propels a mucus-like liquid that covers the airway which traps pathogens (potentially infectious microorganisms) and other particles, preventing them from reaching the lungs.
Well you can give them stuff that they want but that always don't work,so u can be nice to them or ask them what is wrong with them hope this helps :))))))(
Well Prokaryotes usually consist of only one chromosone.
Epithelium is the thin tissue forming the outer layer of a body's surface and lining the alimentary canal and other hollow structures.