Answer:
hope it helps..
Explanation:
'Motile' (or moving) cilia are found in the lungs, respiratory tract and middle ear. ... These cilia have a rhythmic waving or beating motion. They work, for instance, to keep the airways clear of mucus and dirt, allowing us to breathe easily and without irritation.
Answer:
A is the answer the reason why is because I got it right when I was doing my test
Answer:
in acetic acid ,there are 4 hydrogen atoms
Explanation:
C H 3 C O O H
