Molluscs

Christin Clouser 2A- Marine Biology MOLLUSUS * ar star of the largest and most happy groups of animals * the shape mollusca(Latin for soft) refers to the animals soft bodies * covered by a shell made of calcium carbonate * they background 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 founding) atomic number 18 commonly called tusk shells * Gastropods (class Gastropoda; gastro meaning stomach and poda meaning innovation) * 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 special 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 some other organisms that they fray off the surface of tilts with their radulae SCAPHOPODS: * commonly called tusk shells * the metro 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 veritable(a) pelagic (open ocean) species are known * a shell, it is always one piece (univalve) and it may be coiled or unbent ~Feeding and Nutrition * Herbivores- most marine gastropods feed on fine algae that can be scraped from a rock or other solid surface w! ith their radula * Carnivores- carnivorous gastropods unremarkably locate their prey by fol first baseing 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 * locomote Feeders- using their gills to trap...If you want to get a full essay, erect it on our website: OrderEssay.net

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