Complete Solutions and Summary of Animal Kingdom – NCERT Class 11, Biology, Chapter 4 – Summary, Questions, Answers, Extra Questions

Comprehensive summary and explanation of Chapter 4 'Animal Kingdom', covering the fundamental bases of animal classification including levels of organization, symmetry, body cavity (coelom), segmentation, and notochord. The chapter extensively details all major non-chordate and chordate phyla, including their diagnostic features and examples—Porifera, Cnidaria, Ctenophora, Platyhelminthes, Aschelminthes, Annelida, Arthropoda, Mollusca, Echinodermata, Hemichordata, and Chordata (Cyclostomata, Pisces, Amphibia, Reptilia, Aves, Mammalia)—with all NCERT questions and practice problems included.

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