Organisms R and Q differ in level of organization and nutrition. R is unicellular, flagellated and mixotrophic (Protista), while Q is multicellular, non-motile, walled and absorptive saprophytic (Fungi). CBSE Class 9 Science Chapter 12 Patterns in Life Diversity and Classification Solutions NCERT ...
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Creating a distinct acellular domain accommodates viral genetics while preserving cellular classification boundaries. This demonstrates that scientific classification continuously revises and updates as analytical methods and discoveries progress. Class 9 Science Exploration New Book All Chapter Solution Revise, Reflect, Refine Chapter 12 ...
Viruses are omitted from the five kingdoms because they are acellular entities. They lack cellular structures, cytoplasm and independent metabolic machinery, existing as inert particles outside a living host. Chapter 12 Patterns in Life Diversity and Classification Solutions Class 9 Science Patterns ...
The correct option is (ii) Body with jointed legs. Insects belong to phylum Arthropoda, uniquely characterized by jointed appendages, whereas annelids like earthworms completely lack jointed legs. Class 9 Science Chapter 12 Patterns in Life Diversity and Classification Solutions Chapter 12 Patterns ...