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प्रश्न
Viruses were studied in earlier classes. Why are they not placed in any of the five kingdoms? Give reasons.
कारण बताइए
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उत्तर
Viruses are not placed in the five kingdoms because they are acellular—they lack cell membrane, cytoplasm, organelles and ribosomes. They do not carry out independent metabolism or reproduction outside a host cell. The five kingdom classification is based on cellular organisation, so viruses do not fit into any kingdom.
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