Although the exact definition of a species for prokaryotes is debated, two individual bacteria can often be considered members of a single species if they a. have a high degree of DNA similarity. b. have a high degree of morphological similarity. c. can be cocultured because they have the same growth requirements. d. can mate and produce fertile offspring.

not sure if this is what you'r looking for eubacteria and archaebacteria

essentially, one bacterial cell splits into two daugurer cells. bacterial offspring don't need or get care from their parents because they are in a sense their own parents. that said, some bacteria can and do depend on other bacteria especially in harsh environments such as bacterial microfilms in hot water tanks.