which features prevent them from fitting into the five kingdom system – Discussion Forum

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Piyush365

Asked: October 15, 2026In: Class 9 Science

Viruses contain genetic material like living organisms but lack cellular organisation. Which features prevent them from fitting into the five kingdom system? What does this tell us about the limitations of classification systems?

Their acellular nature, absence of metabolic machinery and complete inactivity outside host cells exclude them from cellular kingdoms, revealing that rigid classification boundaries struggle to categorize borderline entities. Class 9 Science Exploration Chapter 12 Important Questions SQP from Class 9 Science Chapter ...