Answer:
To moisten and to protect the airway from stuff like unknown pathogens and infection
Explanation:
The Trachea also known as the windpipe has tons of 'little hairs' called cilia in the epithelium that protect the throat. When someone smokes or breathes in gases it is destroyed and exposes the trachea. But thats another story. :)
The answer is B.
Determine the average daily grass consumption for 20 randomly selected sheep
(Apex)
The location for RNA and DNA is found in the mitochondria and chloroplasts. Produces- make or manufacture from components or raw materials.
Option 3; the other grams were realeased as a gas