- All the living organisms belonging to Kingdom Monera are unicellular.
- The mode of nutrition in them is either autotrophic or heterotrophic.
- All of them are prokaryotic and thus they do not have well-formed nucleus. The nuclear membrane and the cell organelles are absent in them.
- Kingdom Monera consists of different types of bacteria and blue-green algae.
E.g. Bacteria Clostridium titani, Vibrio choleri, Treponema pallidum, Streptococcus pneumoniae, Legionella pneumoniae, Salmonella typhi, Staphylococcus aureus, Clostridium botulinum.