Bacteria reproduce through binary fission. Binary fission is a simpler process than mitosis in plants and animals because bacteria?

are able to produce spores.

do not undergo cytokinesis.

do not have a nucleus.

are single-celled organisms.

This is because bacteria are single-celled organisms. As opposed to animals and plants, which are multicellular organisms, bacteria are not - they consist of one cell only. This is what makes the entire process of binary fission much simpler than mitosis in plants and animals - because of the number of cells these organisms contain.