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Chp.16 Mollusca

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Name 6 Classes of Molluscs and give examples of each: 1.Polyplacophora-Cryptchiton 2.Monoplacophora-Neopolina 3.Gastropoda-Strombus,Busycon 4.Cephalopoda-Nautilus 5.Bivalvia-Tridacna 6.Scaphopoda-Dentalium
Name some gastropods that feed on other molluscs: Melongena, Fasciolana, and Polinices
Name the three layers of the molluscan shell: Periostracum layer, prismatic layer, and nacreous layer
Known as the spirals around the central axis of a molluscan shell: Whorls
Known as the end of the molluscan shell where whirls are: Spire
Known as the central axis of the molluscan shell: Columella
Name 4 characteristics of Molluscs: 1.Live in marine, freshwater, and terrestrial habitats 2.triploblastic body 3.open circulatory system 4.no asexual reproduction
Name 4 more characteristics of Molluscs: 5.body bilaterally symmetrical 6.free-living; occasionally parasitic 7.gaseous exchange by gills, lungs, mantle or body surface 8.complex digestive system
Created by: gmoore730
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