Echinodermata

Higher classification: Deuterostome Scientific name: Echinodermata Kingdom: Animalia Subkingdom:Eumetazoa They have a star-like appearance and are spherical or elongated. They are exclusively marine animals. The organisms are spiny-skinned. They exhibit organ system level of organization. … They are triploblastic and have a coelomic cavity. The skeleton is made up of calcium carbonate....

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Cnidaria

Higher classification: Animal Kingdom: Animalia Subkingdom: Eumetazoa Class:ParaHoxozoa Phylum:Cnidaria Cnidaria is a phylum under kingdom Animalia containing over 11,000 species of aquatic animals found both in freshwater and marine environments, predominantly the latter. Their distinguishing feature is cnidocytes,  specialized cells that they use mainly for capturing prey. Mostly marine entities...

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Arthropoda

Scientific name: Arthropoda Higher classification: Ecdysozoa Phylum: Arthropoda Kingdom: Animalia Subkingdom: Eumetazoa The number of arthropod species vary between 1,170,000 and 5 to 10 million and       account for over 80 percent of all known living animal species. The body is usually segmented, and the segments bear paired jointed appendages, from which the...

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Annelida

Scientific name: Annelida Higher classification: Lophotrochozoa Kingdom: Animalia  The annelids, also known as the segmented worms, are a large phylum, with over  22,000 extant species including ragworms, earthworms, and leeches. The species exist in and have adapted to various ecologies – some in marine environments as distinct as tidal zonesand hydrothermal vents, others in fresh water, and yet others in moist terrestrial...

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