Question

Write three characteristics of kingdoms of classification of living organisms

Answer 1

The system of assembling organisms into groups or sets on the basis of likenesses and variances is called classification. It simplifies the study of wide variety of organisms in a very systematic manner. R.H. Whittaker proposed the five kingdoms of classification in 1969. This classification was based upon certain characters like mode of nutrition, thallus organization, cell structure, phylogenetic relationships and reproduction. This form of classification includes five kingdoms Monera, Protista, Fungi, Plantae and Animalia.

5 kingdom classification based on certain characters :

a) Complexity of cell structure: prokaryotic and Eukaryotic

b) Complexity of organisms: Unicellular or multicellular

c) Mode of nutrition: Plantae (autotrophs), Fungi (heterotrophs and saprobic absorption, Animalia (heterotrophs and ingestion)

d) Life style: Producers (Plantae), Consumers (Animalia), Decomposers (Fungi)

e) Phylogentic relationships: prokaryotes to eukaryotes, unicellular to multicellular organisms




Taken from various sources

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