Answer: Skeletal System
Explanation:
The skeletal system of the body helps the body in their movement and support. The skeletal system of the body is made of salts and proteins.
The skeletal system is the basic structure which provides the body its structure. The main function of this system is to help in movement of the body like bending, walking, sitting, et cetera.
The main constituents of bone is salts of calcium and phosphate. This makes the bones so strong that it can handle weight of the whole body.
