pro: nucleoid, circular DNA that floats freely around cell, simpler DNA, no membrane bound organelles, typically much smaller, divide by binary fission, typically unicellular, anaerobic and aerobic
both: chromosomes, DNA as genetic material, ribosomes, cytoplasm, plasma membrane, vacuoles
elk: nucleus, linear DNA that is held in the nucleus , complex DNA, membrane bound organelles, typically much larger, divide by mitosis and meiosis, typically multicellular, aerobic