Give an example of a product made by such bacteria

There are whole bunch of them for example; wine, yogurt, cheese, meat, bread and so on.
Like we used yeast to rise bread, in medical they used lactic bacteria in many different tablets and capsule, and also used yeast to produced alcohol like wine.

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.