Fungus, bacterium, virus, or parasites: small prokaryotic cells; no histones; 70s ribosomes; no sterols in cell membrane; peptidoglycans in cell wall; replicate by binary fission.

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1. Fungus, bacterium, virus, or parasites: small prokaryotic cells; no histones; 70s ribosomes; no sterols in cell membrane; peptidoglycans in cell wall; replicate by binary fission.