Answer:Smooth muscle is called involuntary muscle because you can not control this type of muscle movement. These muscles line internal organs, blood vessels, and organs such found in the digestive and reproductive systems.
Explanation:
Not for me but That’s so nice of u (:
Bones that function primarily to protect viscera are skull bones, rib cage, shoulder girdle and pelvic girdle.
The wavelength is used to indicate the frequency level of a sound.