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athopoda आर्थोपोडा
Phylum Anthopada Arthopoda is a gric word it meam Joint feet (Arthon Jointed Podos = foot. it is largest animal phylum more than 8.5 Lakhs Species are known. General character of phylum arthopoda - Cosmopoliten - Insect are Cosmopoliten in distribution whitch are found in soil, water, air, other Plant and other animals. Triploblastic - Phylim arthopoda the animal are triploblastic (Ectoderm, Mesoderm, indoderm) Sigmentation - In phylum arthopoda the body and legs Sigmented the animal body developed into three part (Head, therex, Abdomen) Exoskelton - the exoskelton madeup with chitin. Symetrical - In phylum arthopoda biletoral symetricalpresent. Heart - Heart is present ventral surface In phylum arthopoda the heart 13 chambered. Blood - Vascular System is open type, well developed mesicular System, Cold blooded animal. Rispiration- takes place by (gils, trachia, book lungs, Spricles) Nervus System - In phylim arthopoda well develop nervous system.....
