In Whittaker system of classification , prokaryotes are placed n the kingdom
protista
Monera
Plantae
Animalia
History of classification -
Five kingdom classification:
The most accepted classification to date is five kingdom classification. It was proposed by R. H Whittaker. His basis of classification includes 5 fundamental characters:
1. Cell structure- prokaryotic i.e. true nucleus with nuclear envelope is absent or eukaryotic i.e. true double membrane-bound nucleus is present.
2. The complexity of organisms- unicellular or multicellular
3. Mode of nutrition and ecological role - autotrophic i.e. produce their own food with the help of photosynthesis or heterotrophic nutrition. Producers, consumers, decomposers
4. Presence or absence of sexual reproduction
5. Phylogenetic relationships
According to R.H Whittaker, the five kingdoms are Monera, Protista, fungi, plantae and animalia. An outline of five kingdom classification is:
-Kingdom Monera contains prokaryotic organisms.