Clean The Throat.....
a: Cilia ~
b: broom
What: "Cilia is found in the nose and in the
trachea. They are tiny hairs that move all together.Their job is to move mucus down to the pharynx where it is swallowed. Cilia is like a broom that sweeps all the dirt into the trash."
Useful?
Writer:
LCC:
Where:
Date: May 3 2013 10:38 AM
# 2894 Critique Analogy