What is does the fossil record show?

It is one of the biological branch pleantology in this branch we study the old fossil's of the plants and animals by c-14 which half life 5000 year's to know how much the fossil is old.  fossil's help us to record all the characteristic of that such inocient organism.

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.