Annelids - Annelids LATE Lophotrochozoans Cilitellates o...

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Annelids 06/03/2008 17:38:00 LATE Lophotrochozoans Cilitellates o Freshwater or terrestrial Leeches Lack parapodia and tentacles Coelom is not divided Segments modified to form suckers Secrete anticoagulant Used to prevent wounds and treat scarring Had many more medical applications in the past Including “Bad Blood” Oligochaetes Mollusks Body plan comprises three main components Foot o Originally for locomotion o Modified in some groups o Support internal organs Mantle
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o Fold of tissue covering organs o Secretes a shell o Mantle slightly bigger than visceral mass Accommodates gills Gills posses cilia to move  water across Highly vascularized Can be used for filter feeding Unclosed circulatory system Blood fluids pen into coelom Hemocoel delivers oxygen Four major groups Chitons o Typically herbahores Scrape rocks for algae Use radula Cling tightly to rock surfaces
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Annelids - Annelids LATE Lophotrochozoans Cilitellates o...

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