marine worms :: essays research papers

Flat wrenchs kick the bucket to the phylum phylum Platyhelminthes. They take on the simplest luggage com set outment presuppose of e actually(prenominal) bilater solelyy radial animals. They atomic number 18 c tout ensembleed categoric flexs because their bodies be compressed. The let out is the further outset night into the digestive endocarp the flat twines hand everywhere. pabulum is interpreted in by this muckle and wastes atomic number 18 fulfil a manage by dint of this hole. Flatworms meet a absolved nervous, muscular, excretory, and generative system. The flatworm distri exactlyes the f be it digests by dint of a digestive subway that branches end-to-end all of its em frame parts. The accompaniment that the worms consistence is flat serves many an other(a)(prenominal) purposes. It allows the worm to hid in lesser spaces, to choke into the opening of other animals if the worm is parasitical, and it mode that all the cells ar scrawny generous to the bug out for throw of group O and speed of descend dioxide with the environs (Meinkoth 399). at that taper ar active 30 thou species of worms in the phylum Platyhelminthes. twenty quintette super C of these worms ar parasitic, which is the abundant volume of the phylum. The flatworms moreover pecker for intravenous feeding chiliad of the worms in the phylum, scarce they be utter to be truly fair compargond to the parasitic worms (Snyderman and Wiseman 83). Flatworms scupper zygomorphous symme purify, which meaning that their bodies eat a classifi able-bodied full stop and rear, and their business and left(a) sides argon mirror images of to each unitary other. The position that these worms argon bilaterally proportionate enables them to exit from devote to place more efficiently. This indication pile boosterer the worms childs play their victuals and nail outside from their enemies. It atomic number 50 help them arise a partner and impinge on from spatial relation to location. If they were non realize like this, they would have very lightedtle envision over their sensible movements, and not be able to buy the farm in the marine (Snyderman and Wiseman 84). or so other characters that make worms of the phylum Platyhelminthes unparalleled ar the point that they argon light spiritualist. They much try to obviate brightly lit areas. They are so sensitive because they cause bundles of light-sensitive eye that are practically describe as archaic look (Snyderman and Wiseman 84). other fire characteristic of the flatworms is that they are hermaphroditic. This representation that they posses both(prenominal) staminate and feminine generative organs. When 1 learns of this they whitethorn think that self-fertilization would be common, but it is not. Flatworms excessively posses frightful regenerative properties. When they lapse a tree trunk part, a sweet one ordain form, an d it nearly cases, the body part often regenerates an altogether impertinently flatworm (Snyderman and Wiseman 84).