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Lecture about squids, octopus, and snails

by: Charlie Landa

Lecture about squids, octopus, and snails Ecol 450

Marketplace > University of Arizona > Marine Science > Ecol 450 > Lecture about squids octopus and snails
Charlie Landa
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About this Document

Talk about the similarities and differences
Marine Discovery
Katrina Mangin
Class Notes
marine biology




Popular in Marine Discovery

Popular in Marine Science

This 1 page Class Notes was uploaded by Charlie Landa on Saturday August 27, 2016. The Class Notes belongs to Ecol 450 at University of Arizona taught by Katrina Mangin in Fall 2016. Since its upload, it has received 3 views. For similar materials see Marine Discovery in Marine Science at University of Arizona.


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Date Created: 08/27/16
Squid  Mollusca o Soft body o Mantle that secretes the shell o Bilateral symmetry o Muscular foot for movement o Head with eyes o Radula except bivalves o Gills  Snail o Class Gastropoda  Limpets, sea slugs (gills are on one side), and nudibranchs (gills are exposed without a shell), abalone  Cone snail venom for pharmaceutical uses  Grazing snail radula (snails scraping off from the glass)  The muscular foot (secrete mucus which makes them glide over the surface)  Class polyplacophora (chiton)  Class Cephalopoda ("head foot") o Reproduce: Internal fertilization (male deposits sperm packet in female) o Eggs laid in capsules o Hatch as miniature adults o Mate once and die (semelparous) o Octopus are the ones who guard their eggs  Squids and people = convergent evolution (eyes)


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