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You find an unlabelled slide of a single-celled organism that has a well-defined nucleus and multiple cilia. Which group would it most likely belong to? Give reasons.

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The organism belongs to Kingdom Protista. Protists are defined as unicellular eukaryotic organisms with membrane-bound nuclei; structures like cilia provide aquatic locomotion, characteristic of ciliated protists such as Paramecium.

Class 9 Science Exploration Chapter 12 Important Questions

SQP from Class 9 Science Chapter 12 Reproduction How Life Continues

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  1. The organism belongs to Kingdom Protista. In Whittaker’s five kingdom system, all single-celled organisms possessing a true, membrane-bound nucleus are placed under Protista rather than Monera, which contains prokaryotes lacking nuclei. Furthermore, the presence of multiple surface cilia for locomotion and feeding is a classic diagnostic feature of aquatic protists like Paramecium, confirming this taxonomic placement.

     

    For more NCERT Solutions of Class 9 Science Exploration Chapter 12 Patterns in Life Diversity and Classification Question Answer (2026-27)

    https://www.tiwariacademy.com/ncert-solutions/class-9/science/exploration-chapter-12/

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