Practice question
Question
In the five-kingdom classification system proposed by Whittaker, which of the following entities were NOT given any place?
Explanation
R.H. Whittaker's robust five-kingdom classification system (Monera, Protista, Fungi, Plantae, Animalia) is based on cellular structure and physiology. According to NCERT, truly acellular entities like 'viruses, viroids, and prions' (as well as the symbiotic lichens) were totally excluded and found no place in this system. This is because they are not considered truly 'living' cellular organisms in the traditional biological sense.
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