Mollusca
Friday, March 16, 2007
What is a Mollusk?
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Mollusks are members of the phylum mollusca. Mollusks have been evolving in the sea for over 600 million years and there are more than 100 0...
Movement
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Land mollusks like slugs and snails move slowly by means of a flat sole called a foot. Mollusks living in the ocean move by jet propulsion. ...
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Respiration
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Mollusks use gills as a form of resperation as well as filters for foods, though it is known that most mollusk species only use their gills ...
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Reproduction
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Mollusc's reproductive organs are situated in the visceral mass (refer to female squid picture). Both simple and highly complex forms of...
Circulation/Internal Transport
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The oxygen and nutrients that are taken in by molluscs are carried through it’s body by blood. The blood is not always contained within ves...
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Feeding + Digestion
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Most mollusks are herbivores, carnivores, or filter feeders though there are some species that are detritus feeders or are parasitic. Many m...
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Excretion
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The mollusks undigested food becomes a solid waste that is eliminated through the anus as feces. Another form of waste removal for mollusks ...
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Molluscs and their environments
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Molluscs have a large impact on the environment, as they play many differnet roles in their ecosytem. For example, Molluscs are detritus fe...
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Squid Dissection Lab
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Vocabulary
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Mollusks - soft-bodied invertebrate animal that is characterized by an internal or external shell, a foot, a mantle, and visceral mass; mem...
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Mollusk Facts
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~Mollusks are a very diverse group of invertabrates that live in a wide variety of environments. They can be found living in gardens, trees,...
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