Question

Differentiate between two kingdom classification and three kingdom classification system

Answer 1

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$\sf\underline\green{Two \: kingdom \: classifcation}$

• In his Systema Naturae, first published in 1735, Carolus Linnaeus distinguished two kingdoms of living things: Animalia for animals and Plantae (Vegetabilia) for plants. He classified all living organisms into two kingdoms – on the basis of nutrition and locomotion (mobility).

$\sf\underline\green{Three \: kingdom \: classification}$

• Either they were placed in a separate category called Chaos or, in some cases, they were classified with plants or animals. Then in the 1860s, the German investigator Ernst Haeckel proposed a three-kingdom system of classification. Haeckel's three kingdoms were Animalia, Plantae, and Protista.