Organism S is heterotrophic, a nutritional mode shared across fungi, many protists and animals. Accurate classification requires cellular differentiation, absence of cell walls and an internal backbone. Class 9 Science Exploration New Book All Chapter Solution Revise, Reflect, Refine Chapter 12 Reproduction ...
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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 ...
The correct option is (iii) Presence of a cell membrane. Animal cells are eukaryotic, heterotrophic and characteristically bounded by a flexible cell membrane while completely lacking a rigid cellulose cell wall. CBSE Class 9 Science Chapter 12 Patterns in Life Diversity ...