Which list consists of elements that have the most similar chemical properties?
(1) mg, al, and si (3) k, al, and ni
(2) mg, ca, and ba (4) k, ca, and ga

the answer is c i believe

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.