Evolution of Biological Classification — NEET Biology
📚 Practice ConceptBiological classification of plants and animals was first proposed by Aristotle on the basis of simple morphological characters. Linnaeus later classified all living organisms into two kingdoms - Plantae and Animalia. Whittaker proposed an elaborate five kingdom classification - Monera, Protista, Fungi, Plantae and Animalia. The main criteria of the five kingdom classification were cell structure, body organisation, mode of nutrition and reproduction, and phylogenetic relationships.
Which of the above statements are correct concerning Whittaker’s Five Kingdom Classification? S1: Whittaker's Five Kingdom Classification included Monera, Protista, Fungi, Plantae, and Animalia. S2: The primary criteria for Whittaker's classification were cell structure, body organisation, mode of nutrition, reproduction, and phylogenetic relationships. S3: Viruses, viroids, and prions were explicitly categorized under a separate kingdom in Whittaker's system due to their acellular nature. S4: This system unified prokaryotic bacteria and blue-green algae under Monera, and unicellular eukaryotes under Protista. S5: Fungi were placed in a separate kingdom due to their distinct cell wall composition (chitin) compared to green plants (cellulose).
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