Answer:
gravity is your answer my friend
Answer:
Homeostasis
Explanation:
It is what makes to where you are a warm enough temperature that's not to hot and not to cold. It tells all the cells in that one part of your body what to do keep it balanced. If you don't understand this just comment on my answer and say what you need to tell me so I know what to adjust so you can understand it.
Answer:
trees
Explanation: its the only part of an ecosysstem that is living
B is not part of the cell theory; there are many types of cells that do not have cell walls, so the statement cannot even be generally true.
