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To walk using many tube feet that have suckers on their ends. ... The grooves that run under each arm (ambulacral grooves) are lined with tube feet that usually have suckers for attachment to the substratum. Some sea stars are very small (1-2 cm) while others like the Crown-of-Thorns can be up to 60 cm across. ... Red Sea Star...
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www.reef.edu.au/asp_pages/secb.asp?FormNo=43
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Many echinoderms have five of these similar body parts, giving them pentaradial symmetry. ... Pedicellariae, tiny pincer-like organs, keep the skin and gills of the sea star free from organisms that might grow on it, such as algae and barnacles. Rows of tube feet run along the underside, or oral surface, of the sea star.
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www.pbs.org/kqed/oceanadventures/educators/treasures/ad...
www.pbs.org/kqed/oceanadventures/educators/treasures/adaptations-insideout.html
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Sea Star tube feet - Received from Carol in Iowa. Question: how many tube feet does a typical starfish typically have? We're studying ... Each gonad has a gonopore that is usually located at the base of the arms and often opens on the oral surface (the side where the mouth is located). Most sea stars are broadcast spawners.
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oceanlink.island.net/biodiversity/ask/echino.html
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There are paxillae of Astropecten-the burrowing sea star. ... Ossicles are fused together in some areas such as the ambulacral grooves on the oral surface. Here they provide support surrounding the tube feet. Many of the ossicles are perforated with spaces-presumably this reduces the weight of the ossicles.
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comenius.susqu.edu/bi/322/IZLecture31.htm
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A selection of articles related to Sea star - Internal Anatomy ... Sea stars are composed of a central disc with (usually) five arms exhibiting pentaradial symmetry. The mouth is located underneath the sea star on the oral or ventral suface. The spiny upper surface covering the species is called the aboral or dorsal surface.
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www.experiencefestival.com/sea_star_-_internal_anatomy
www.experiencefestival.com/sea_star_-_internal_anatomy
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A selection of articles related to Sea star - Reproduction ... Sea stars are composed of a central disc with (usually) five arms exhibiting pentaradial symmetry. The mouth is located underneath the sea star on the oral or ventral suface. The spiny upper surface covering the species is called the aboral or dorsal surface.
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www.experiencefestival.com/sea_star_-_reproduction
www.experiencefestival.com/sea_star_-_reproduction
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This structure is actually the anus of the Sea Star and undigested food exist the animal from here; the mouth is found in the center of the the bottom (oral) surface. A magnifying glass or microscope would reveal tiny organs called pedicellaria on the upper (aboral) surface of the sea star.
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www.northwestwildlifeonline.com/Echinoderms.htm
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The surface of a sea star looks and feels rough because of the numerous small and transparent sacs called papulae that cover the body, ... Depending on the species, tube feet have suckers that help stick the sea star to hard surfaces or assist in prying open the shells of its mollusk prey. Besides involvement in prey...
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www.novelguide.com/a/discover/grze_01/grze_01_00053.htm...
www.novelguide.com/a/discover/grze_01/grze_01_00053.html
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By examining the oral (ventral or underside) side of a sea star, one will be able to see hundreds of tiny feet usually arranged into several rows on each ray (appendage) of the star. These are called tube feet, or podia, and are filled with sea water in most echinoderms. ... Many sea stars, such as the Northern Sea Star,
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www.oceanicresearch.org/education/wonders/echinoderm.ht...
www.oceanicresearch.org/education/wonders/echinoderm.html
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