Answer:
Body systems are used throughout your body to help you move and to live like the heart for example.
Bacteria decomposes other things.
ATP or adenosine tri phosphate is the cell's main source of energy. It is hydrolyzed by the cell and the energy released is used in cellular activities like muscle movement
Answer:
D.the movement of air currents by conversation cells
Answer:
D. All of the above I think
Explanation:
