rotifers - Most are filter feeders Cephalopoda Most complex...

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1. Mollusca a. Characteristics i. Tissue level organization  1. Triploblastic i. Bilateral symmetry 1. No segmentation  i. Coelomate 1. Body cavity in mesoderm i. Marine, freshwater, and terrestrial habitats a. Maintenance functions i. Locomotion 1. Head-Foot Feeding Complete digestive system    Gas exchange Gills, lung, mantle, or body surface Elimination of wastes Mantle cavity Reproduction Classes Gastropoda Largest and most diverse Mollusca Ex.) snails and slugs Marine, freshwater, and terrestrial habitats Bivalvia
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Unformatted text preview: Most are filter feeders Cephalopoda Most complex mollusc Ex.) octopuses, squid, nautiluses Uses foot to capture prey Jet like locomotion Closed circulatory system Zebra Mussel Under class Bivalvia Habitat destruction, pollution, and invasion threaten freshwater mussels Covers fat pocketbook mussel so well where FPM can't feed Since FPM is endangered, pearl buttons are will be replaced w/ plastic buttons...
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rotifers - Most are filter feeders Cephalopoda Most complex...

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