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Life 103 lab week 5 class notes

by: Devrrae Russell

Life 103 lab week 5 class notes LIFE 103

Marketplace > Colorado State University > Biology > LIFE 103 > Life 103 lab week 5 class notes
Devrrae Russell

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About this Document

These notes cover mollusca
Biology of Organisms Lab
Donna Weedman
Class Notes
mollusca, squid, clams, cuttlefish
25 ?




Popular in Biology of Organisms Lab

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This 2 page Class Notes was uploaded by Devrrae Russell on Monday September 26, 2016. The Class Notes belongs to LIFE 103 at Colorado State University taught by Donna Weedman in Fall 2016. Since its upload, it has received 5 views. For similar materials see Biology of Organisms Lab in Biology at Colorado State University.


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Date Created: 09/26/16
September 21, 2016 Mollusca Polyplacophora Bivalvia Gastropoda Cephalopoda Name meaning Many plate Two shells Stomach foots Head foots bearer chitons Clams Snails slugs Octopi squid Example oysters whelks conchs cuttlefish scallops nautilus mussels # of germ 3 3 3 3 layers symmetry Bilateral Bilateral Bilateral Bilateral Coelom Coelom Coelom Coelom Body cavity Support system 8 shells 2 shells 1 shell except 1 shell slugs Squid = pen Cuttlefish = cuttlebone Nautilus = spiral shell Octopi = no shell Nervous system Cephalization No ceph > Cephalization Cephalization Locomotion Foot crawl Foot dig Foot crawl Arms, tentacles, siphon Digestion Y N - filter Y Y feeders Beaks (radula present) incurrent circulation open open open closed excretion Gills Gills Gills Gills Gills Gills Gills Gills respiration Body plan Mantel- makes Mantel- Mantel- makes Mantel- makes shell and house makes shell shell and house shell and house gills and house gills gills Visceral mass- gills Visceral mass- Visceral mass- reproductive and Visceral reproductive and reproductive and digestive mass- digestive digestive reproductive and digestive


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