Answer:
Diaphragmatic breathing requires contraction of the diaphragm and is also called deep breathing. Costal breathing requires contraction of the intercostal muscles and is also called shallow breathing.
Hey ...
The answer is D. He is using muscular strength.
Hope this helps!
The first line of denfense involves
Skin
Answer:
im sorry to tell you but I don't understand on what you're tying to tell me m. my bad
Explanation:
