Name the largest phylum of animal kingdom

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Name the largest phylum of animal kingdom

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Arthropoda is the largest phylum with about nine lakh species. They may be aquatic, terrestrial or even parasitic. They have jointed appendages and a chitinous exoskeleton. This phylum includes several large classes and contains the class Insecta which itself represents a major portion of the animal species in the world. They possess the ability to survive in every habitat. They have an open circulatory system.

Name the largest phylum of animal kingdom

Arthropods are the largest grouping of animals all of which have jointed legs and an exoskeleton made of chitin. Arthropods dominate the animal kingdom with an estimated 85 percent of known species included in this phylum; many arthropods are as yet undocumented. The principal characteristics of all the animals in this phylum are functional segmentation of the body and presence of jointed appendages. Arthropods also show the presence of an exoskeleton made principally of chitin, which is a waterproof, tough polysaccharide. Phylum Arthropoda is the largest phylum in the animal world; insects form the single largest class within this phylum. Arthropods are eucoelomate, protostomic organisms. Phylum Arthropoda includes animals that have been successful in colonizing terrestrial, aquatic, and aerial habitats. This phylum is further classified into five subphyla: Trilobitomorpha trilobites, all extinct , Hexapoda insects and relatives , Myriapoda millipedes, centipedes, and relatives , Crustaceans crabs, lobsters, crayfish, isopods, barnacles, and some zooplankton , and Chelicerata horseshoe crabs, arachnids, scorpions, and daddy longlegs.

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