Molluscs

Christin Clouser 2A- Marine Biology MOLLUSUS * ar oneness of the largest and most thriving groups of animals * the shape mollusca(Latin for soft) refers to the animals soft bodies * covered by a shell made of calcium carbonate * they puke in size of it from microscopic snails to the giant squid, Architeuthis TYPES: * Chitons (class class Polyplacophora) * Scaphopods (class class Scaphopoda: scapho substance sheath and poda nub behind) ar ordinarily called tusk shells * Gastropods (class Gastropoda; gastro meaning stomach and poda meaning fundament) * Nudibranchs are marine gastropods that lose a shell * Bivalves (class Bivalvia) are molluscs that have shells divided into two fit halves called valves.

* Cephalopods means head-footed and refers to the animals foot, which is circumscribed into a head worry structure CHITONS: * class Polyplacophora * flatten bodies that are most often covered by viii shell plates * head for the hills on algae and otherwise organisms that they fray off the surface of fluctuates with their radulae SCAPHOPODS: * commonly called tusk shells * the piping like shell is open at both ends * animals foot is utilize for burrowing, protrudes from the larger end GASTROPODS: * live in a wide motley of habitats * from the littoral zone (shore) to the oceans bottom and eventide pelagic (open ocean) species are known * a shell, it is always one piece (univalve) and it may be coiled or true ~Feeding and Nutrition * He rbivores- most marine gastropods feed on fin! e algae that can be scraped from a rock or other solid surface with their radula * Carnivores- carnivorous gastropods ordinarily locate their prey by fol crusheding chemic trails in the water * Scavengers and Deposit Feeders- the snail can often be found in large numbers at low tide, where it feeds on organic material deposited by the tide * try Feeders- using their gills to trap...If you want to get a full essay, plagiarise it on our website: OrderCustomPaper.com

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