Question

what does each body system contribute to the production of movement by the skeletal muscles? brings oxygen and sugar to muscles brings sugar into the blood brings oxygen into the blood activates the muscles to contract

Explanation:

The circulatory system brings oxygen and sugar to muscles. The digestive system brings sugar into the blood. The respiratory system brings oxygen into the blood. The nervous system activates the muscles to contract.

Answer:

1. First image (circulatory - heart and vessels): brings oxygen and sugar to muscles
2. Second image (digestive - stomach and intestines): brings sugar into the blood
3. Third image (respiratory - lungs): brings oxygen into the blood
4. Fourth image (nervous - brain and nerves): activates the muscles to contract