What reproductive process do bacteria use by forming two identical cells from one parent cell?   binary fission  fragmentation  vegetative  propagation  fertilization

binary fission is the division of the parent cell into 2 identical cells.

Binary fission

Explanation:

Fundamentally, bacterial fission is a manner by which bacteria perform cell division, similarly to mitosis that happens in eukaryotic organisms (such as plants and animals), but their division is little distinctive.

Additionally, in multicellular organisms, cells divide by mitosis to shape the organism grow larger or replace old worn-out cells with new ones. In the case of a bacterium, however, a cell division is a way that bacteria reproduce, or add form bacteria population.