Speed is a complex skill that requires the communication of which systems to function?
select all that apply.
skeletal system
circulatory system
respiratory system
muscular system

The correct answer will be options- skeletal system and muscular system

Explanation:

The movement of the body is provided by the action of many of all the complex biological systems but he directly influenced by the coordination of the skeletal system with the muscular system.

The coordination of these two systems forms the "Musculoskeletal system' which provides shape, stability and movement to the body. In this system skeletal system protect the organs of the body whereas the muscle attached to the bones allow these bones to move.

Thus, the selected options are the correct answer.

really dont know just need some points

i think its both a and b