Mollusca Flashcards
“<b>Mollusca Characteristics? (10)<br></br></b><br></br>(segementation, symmetry, tissue development, 3 traits, morphology)”
“<b>Unsegmented</b><br></br>Bilateral Symmetry<br></br><b>Protosomes</b> :)<br></br><b>Coelomates</b><br></br>Calcium Carbonate Shell<br></br>Muscular Foot<br></br>Radula<br></br>Important environmental indicators (like frogs)<br></br><b>Nephrinda (like kidney)</b><br></br>Triploblastic”
“<b>What are the respitory features for enviroment type and types of circulation that Mollusca have?</b>”
“Aquatic have gills & terrestrial have lungs<br></br><br></br>- Cephalapoda have closed blood vessels<br></br>- Mollusucs have open blood vessels”
“<b>What trait defines Gastropoda?</b>”
Gastropods visceral mass goes through torsion during devleopment
“<b>Main traits of the 4 mollusca classes?</b>”
“<div><div><div><div><div>Polyplacophora (chitons) - 8 plates,</div></div></div></div><div><div><div><div></div></div></div></div></div><div><div><div><div><div>Gastropoda(snails) - torsion</div></div></div></div><div><div><div><div></div></div></div></div></div><div><div><div><div><div>Bivalvia(mussels) - <b>lacks radula</b>, attaches to rocks</div></div></div></div><div><div><div><div></div></div></div></div></div><div><div><div><div><div>Cephalopoda (octopus, squid, nautilis, cuttlefish)- foot modified into arms<br></br><br></br></div></div></div></div></div>”
“<b>Which invertebrates have the largest relative brain sizes?</b>”
Cephalopoda
” <div> <div> <div><b> veliger larvae belong to what class?</b><br></br><ul> </ul> </div> </div> </div>”
“mollusca<br></br><b><br></br></b><img></img>”
“<b>what is a Odontophore</b>”
muscular base of radula
“<b>Cephalopods have a CLOSED circulatory system and 3 hearts usede for?</b>”
<div> <div> <div> <div> <div>2 branchial hearts: move blood through gill capillaries <br></br>1 systemic heart: provides rest of body with blood</div> </div> </div> </div></div>
“<b>Which Mollusca class has no radula?</b>”
Bivalves
“<b>What special adaption to nautuilis have?</b>”
<div> <div> <div> ballast bouyancy chambers</div> </div> </div>
“<b>What are the 3 parts of a bivalve shell?</b>”
Periostratcum<br></br>Ostracum<br></br>Nacreous
“<b>What makes Bivalvia shells unique?</b>”
Shell has 2 halves (made by mantle) that hinge
“<b>What is a Ctenidia</b>”
Gills
“<b>Which animal phyla have aMetanephridia?<br></br><br></br>annelids<br></br>arthropods<br></br>platyhelminths<br></br>porifera<br></br>mollusca</b>”
Mollusca<br></br>Annelid<br></br>Arthropods
“<b>What is the respitory system in Mollusca called (other than terresterial lungs)?</b>”
Ctenida
