Phylum : Platyhelminthes (Flat worms), its classification and characteristics
multicellular, triploblastic, bilaterally symmetrical. first animals to have organ-system grade of body organization. body is dorsoventrally flattened so called flat worms. size varies from less than mm and more than 10-15 metres. mostly parasitic, few are free living and are found in water or damp soil. parasitic forms have hooks and suckers to stick to … Read more