The particle of an atom that carries no electrical charge is called a(n)

a. proton

b. nucleus

c. neutron

d. electron

smooth muscle is composed of involuntary muscles found within the walls of organs and structures such as the esophagus, stomach, intestines, and blood vessels. those muscles push materials like food or blood through organs. unlike skeletal muscle, smooth muscle can never be under your control.

yes the answer is total mass in unchanged   : )