By Ajay Anand
The most accepted system of classification. The five kingdoms are:
Monera
Protista
Fungi
Plantae
Animalia
Whittaker used following criteria for classification of living beings:
Cell Structure
Thallus Organization
Mode of Nutrition
Reproduction and
Phylogenetic Relationships
Prokaryotes, cell wall present
Nuclear membrane absent
Cellular level organisation
They are autotrophic and heterotrophic
Eukaryotes
Cell wall present in some
Nuclear membrane present
Autotrophic and heterotrophic
Eukaryotes
Cell wall and nuclear membrane present
Heterotrophic nutrition
Cell wall made up of cellulose
Tissue level and organ level organisation.
Autotrophic nutrition (Photosynthesis)
Cell wall is absent but nuclear membrane present
Tissue level, organ level and organ system level organizations
Heterotrophic nutrition