(this may not be the right subject) could you give me information about the movements in outer space?

Objects in space follow the laws and rules of physics. Thimgs in space have inertia. They travel in a straight line unless there is a force that makes them stop or change.

Cell division is important to single celled organisms because it allows the cells to reproduce. through cell division, cells make exact copies of themselves. when single celled organisms go through cell division, they make exact copies of themselves which is how they reproduce.