Which of the following organisms are included in Kingdom Protista as g

Which of the following organisms are included in Kingdom Protista as given by R Whittakar?

Nostoc, mycoplasma and protozoans

Bacteria, amoeba and protozoan

Anabaena, bacteria and paramecium

Unicellular algae, diatoms, slime moulds and protozoans

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UPSC Geoscientist – 2020

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Option D lists organisms that are included in Kingdom Protista according to R.H. Whittaker’s five-kingdom classification.

R.H. Whittaker’s classification (1969) proposed five kingdoms: Monera, Protista, Fungi, Plantae, and Animalia. Kingdom Protista includes all single-celled eukaryotes. This encompasses a diverse group including unicellular algae (like Euglena), diatoms, slime moulds (which are often multicellular at certain stages but are considered protists), and protozoans (like Amoeba, Paramecium).

Options A, B, and C include organisms belonging to Kingdom Monera (Nostoc, mycoplasma, bacteria, Anabaena) which consists of prokaryotes (bacteria and cyanobacteria). Protozoans, unicellular algae, diatoms, and slime moulds are all eukaryotic and predominantly unicellular, fitting the description of Protista.

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