4 Characteristics Marine animals adapted for life on the ocean floor Lophophore- a ciliated ring of tentacles that surround the mouth and is specialized for capturing suspended particles in the water.Often asexual reproductionU shaped gut
5 Body forms Brachiopods Resemble clams and other bivalve mollusks because the body is enclosed between two shellsDiffer because shells are dorsal and ventral instead of lateral.Attach to substrate by a long stalkLophophore
7 Body forms cont. Phoronids and Bryozoa A “crown” of tentacles-lophophorebuild upright tubes of chitin to support and protect their soft bodies.
8 FeedingCilia on the lophophore beat, this brings water laden with food into the mouth or opening. This allows them to filter the food they need out of the water.
9 Secretion and Gas Exchange Phoronids secrete tubes of sediment and live in them, extending their lophophores from their tubes for feedingNearly all secrete outer casings (shells, tubes, exoskeletons)Bryozoa: gasses are exchanged through body surface, especially the tentacles
10 ReproductionBryozoa form sessile colonies by asexual budding or by statoblast production.Statoblast- small seedlike structureReproduction in all lyphophorate phyla is often asexual reproduction.