Tuesday, December 17, 2013

Essays on Marine Worms

marine worms Flatworms belong to the phylum Platyhelminthes. They countenance the simplest personate plan of unaccompanied bilater exclusivelyy symmetrical animals. They are called flavorlessworms because their bodies are compressed. The mouth is the single go-ahead into the digestive cavity the flatworms have. Food is taken in with with(p) this hole and wastes are discharged also through this hole. Flatworms have a well-defined nervous, muscular, excretory, and reproductive system. The flatworm distributes the victuals it digests through a digestive tube that branches throughout all of its body parts. The fact that the worms body is flat serves umteen purposes.
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It allows the worm to hid in small spaces, to fit into the opening of another(prenominal) animals if the worm is parasitic, and it means that all the cells are closely fair to middling to the surface for exchange of oxygen and carbon dioxide with the environs (Meinkoth 399). on that point are about thirty thousand species of worms in the phylum Platyhelminthes. twenty dollar bill five thousand of these worm...If you want to get a blanket(a) essay, order it on our website: BestEssayCheap.com

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