You can't hear sound on the moon because of space. Space is a vacuum so you can't hear anything unless there is a medium for it to travel through (like air)
Answer:
c
Explanation:
because the body uses itself to heal
Answer:
At heart, all life on Earth uses a membrane that separates the organism from its environment. ... In this regard, water is essential simply because it's a liquid at Earth-like temperatures. Because it flows, water provides an efficient way to transfer substances from a cell to the cell's environment.
