Answer:
The muscular and nervous systems enable the involuntary breathing mechanism. The main muscles in inhalation and exhalation are the diaphragm and the intercostals (shown in blue), as well as other muscles. Exhalation is a passive action, as the lungs recoil and shrink when the muscles relax.
Explanation:
A catalyst speeds up the rate of reaction so the answer is B.
Answer:
it depends upon a his body which antigen is present
Explanation:
it depends on that person not on their parents
Answer:
Explanation:
He should use these for airborne sounds
MDF Fiberboard.
Gypsum Board.
Plasterboard.
Mineral Wool.
He should avoid using
