nemotoda - Bivalvia Ex.) clams, oysters, mussels,...

Info iconThis preview shows page 1. Sign up to view the full content.

View Full Document Right Arrow Icon
1. Mollusca a. Characteristics i. Tissue level organization 1. Triploblastic ii. Bilateral symmetry 1. No segmentation iii. Coelomate 1. Body cavity in mesoderm iv. Marine, freshwater, and terrestrial habitats b. 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
Background image of page 1
This is the end of the preview. Sign up to access the rest of the document.

Unformatted text preview: Bivalvia Ex.) clams, oysters, mussels, & scallops 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...
View Full Document

Ask a homework question - tutors are online