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When they settle to the bottom they change to the typical echinoderm features. ... The digested food mass, together with the stomach is then sucked back in. This method can be observed, if you turn around a starfish, that sits on prey or sand - you will see the stomach retreating.
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www.starfish.ch/reef/echinoderms.html
www.starfish.ch/reef/echinoderms.html
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By varying the internal water pressure, the echinoderm can extend and contract its tube feet for locomotion, food collection and respiration.
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www.oceaninn.com/guides/echino.htm
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Echinoderm means "spiny skin.". Because of its abundant fossil record, up to 25 classes have been recognized. A traditional hypothesis of the ... Most radially symmetric animals are sessile, however, echinoderms are able to move. The water vascular system originally functioned for collection and transport of food,
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animaldiversity.ummz.umich.edu/site/accounts/informatio...
animaldiversity.ummz.umich.edu/site/accounts/information/Echinodermata.html
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I think that echinoderms eat little species at the bottom of the ocean where they live. Echinoderms eat little animals that live at the bottom of the ocean where they live. echinoderms eat plankton and food particles found in the botttom of...
http://wiki.answers.com/Q/What_do_echinoderms_eat
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Echinoderm, a member of a large group (phylum) of spiny-skinned marine animals, including starfish, sea urchins, and sea cucumbers. Echinoderms are found in all oceans at various depths. There are about 6,000 species. ... From there, the groove carries the food straight to the mouth of the echinoderm.
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animals.howstuffworks.com/marine-life/echinoderm-info.h...
animals.howstuffworks.com/marine-life/echinoderm-info.htm
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Echinoderm - Wikipedia, the free encyclopedia
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Echinoderms (Phylum Echinodermata ) are a phylum of marine animals. Echinoderms are found at every ocean depth, from the intertidal zone to the abyssal zone. Aside from the problematic Arkarua , ...
en.wikipedia.org/wiki/Echinoderm
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Statistically, the spatial distributions of several echinoderm species correlated significantly with the distributions of detrital aggregates, ... Benthos ; Time variation ; Food supply ; North Pacific ; Ecological abundance ; Spatial distribution ; Abyssal zone ; Suspended particle ; Echinodermata ; California ;
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cat.inist.fr/?aModele=afficheN&cpsidt=2440780
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All echinoderms live in salt water like in oceans and seas. They are in every ocean except for the Polar ... Not all echinoderms consume food the same way. Sea stars will pry open mussels or clams to get to the inside. They can open the shell or valves one-tenth of an inch apart and still are able to consume it.
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www.kokomoschools.com/Sycamore/Echinoderms/habitat_feed...
www.kokomoschools.com/Sycamore/Echinoderms/habitat_feeding.html
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