Kingdom Monera
Evolutionary Biology & Ecology > Monera and Protista
Kingdom Monera Kingdom Monera consists Unicellular Prokaryotes. It includes the single celled organisms known as bacteria. The members of this kingdom are prokaryotes (single–celled organisms that have no pre–defined nucleus or membrane–bound organelles).

Kingdom Monera refers to the microorganisms that are considered as the most ancient living creatures in the world.

It includes the single celled organisms known as bacteria. The members of this kingdom are prokaryotes (single–celled organisms that have no pre–defined nucleus or membrane–bound organelles). Most prokaryotes are microscopic. Their collective biological mass (biomass) is at least ten times that of all eukaryotes (Eukaryote is an organism whose cells contain complex structures enclosed within membranes).

Monera is a kingdom of prokaryotes which includes organisms such as bacteria, Cyanobacteria, Mycoplasma etc. They are present almost everywhere. They have little difference in outer shape and form. These are unicellular organisms which have no specific mode of nutrition. They can be aerobic or anaerobic. Cell wall is present and is made of peptidoglycan with mucin covering. They have naked DNA. No membrane bound organelles are present. Endoplasmic reticulum, mitochondria are absent. They multiply by binary fission. The kingdom Monera has been divided into two groups which are: Archaebacteria – the ancient type and Eubacteria – the true type. The true type is further divided into bacteria and cyanobacteria.

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