The body system seen here protects internal structures, provides support, and allows for movement. But this system does not work alone. In order for humans to move, this system must work together with the ___________ system.
A) circulatory
B) digestive
C) muscular
D) respiratory

Respuesta :

C) muscular system hope this helped
I think its C. Muscular. I might be wrong, but obviously muscles are supposed to help us humans move.. so yeah, connecting the dots, lol.