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Question : Viruses are non-cellular organisms, but replicate themselves once they infect the host cell. To which of the following kingdom do viruses belong to ?

Answer»

Monera 
Protista 
Fungi 
None of these 

Solution :In five kingdom classification of WHITTAKER, non-CELLULAR organisms like viruses and viroids are not mentioned. Viruses did not FIND a place in classification since they are not truly "living and hence, they are considered as non-cellular.
Monera includes all unicellular prokaryotes called bacteria in which viruses can not be included.
Protista includes all EUKARYOTIC unicellular plant and animals and fungi are HETEROTROPHIC/ parasitic cellular organism devoid of chlorophyll.


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