Comprehensive "Neet Notes On Animal Kingdom "

The Animal Kingdom (Kingdom Animalia) includes multicellular, eukaryotic organisms that are heterotrophic and mostly motile. It is divided into two broad categories: invertebrates (without a backbone) and vertebrates (with a backbone). Invertebrates include phyla like Porifera (sponges), Cnidaria (jellyfish), Platyhelminthes (flatworms), Nematoda (roundworms), Annelida (segmented worms), Arthropoda (insects, spiders), Mollusca (snails, octopuses), and Echinodermata (starfish). Vertebrates fall under Phylum Chordata, including classes such as Pisces (fish), Amphibia, Reptilia, Aves (birds), and Mammalia. Animals have diverse body structures, modes of reproduction, and adaptations for survival, forming a major portion of Earth’s biodiversity. The Animal Kingdom (Kingdom Animalia) includes multicellular, eukaryotic organisms that are heterotrophic and mostly motile. It is divided into two broad categories: invertebrates (without a backbone) and vertebrates (with a backbone). Invertebrates include phyla like Porifera (sponges), Cnidaria (jellyfish), Platyhelminthes (flatworms), Nematoda (roundworms), Annelida (segmented worms), Arthropoda (insects, spiders), Mollusca (snails, octopuses), and Echinodermata (starfish). Vertebrates fall under Phylum Chordata, including classes such as Pisces (fish), Amphibia, Reptilia, Aves (birds), and Mammalia. Animals have diverse body structures, modes of reproduction, and adaptations for survival, forming a major portion of Earth’s biodiversity.