Muscles.
skeletal allows movement. No system allows movement of organs LOL
muscular system
The nervous system controls most of the body's functions, including movement, sensory processing, and organ regulation. It consists of the brain, spinal cord, and nerves that transmit messages throughout the body to coordinate various activities.
Organisms with a closed circulatory system are likely to have a circulating body fluid distinct from the fluid that directly surrounds the body's cells. In a closed circulatory system, the blood is contained within vessels and separate from the interstitial fluid that surrounds the cells. This system allows for more efficient nutrient and waste exchange.
The nervous system is responsible for determining the body's immediate response to the heat. It also is responsible for determining the body's immediate response to the cold.
skeletal allows movement. No system allows movement of organs LOL
skeletal system
The skeletal system supports the body by providing structure and protection to internal organs. It also works together with the muscular system to allow movement.
The muscular system is need because it supports the body and allows for movement
muscular system
skeletal system
skeletal allows movement. No system allows movement of organs LOL
The muscular system is responsible for creating the force that allows the body to move. Muscles contract and generate the necessary mechanical energy for movement.
Circulatory System
The nervous system transmits electrical signals from the brain to the muscle structures throughout the body, this allows the relaxation and contraction of certain muscles depending on the desired type of movement.
Muscle cells
Muscular system.