Assertion: echinoderm's organ | /r/HasAspect | mantle
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Source sentences:
text: ; propel themselves through the water by flushing water through their tube-like organ called the hyponome chiton - primitive, elongated, bilaterally symmetrical marine mollusk having a mantle covered with eight calcareous plates cilia - a microscopic hair like process extending from the surface of a cell or unicellular organism; capable of rhythmical motion, it acts in unison with other such structures to bring about the movement of the cell or of the surrounding medium clitellum - a swollen, glandular, saddle-like region in the epidermis of certain annelid worms, such as the earthworm, that secretes a viscous fluid to form a cocoon for their eggs coelum - cavity within an animal body conchology - the study and collection of shells crop - organ at the bottom of the esophagus where food is stored for later digestion cuttlebone - internal shell found in some cuttlefish dorsal - of, toward, on, in, or near the back or upper surface of an organ, part, or organism echinoids - sea urchins and sand dollars evisceration - to remove the entrails of; disembowel gastropod - “stomach-foot”; slow-moving mollusks that have a muscular foot to aid in locomotion gizzard - a modified muscular pouch behind the stomach having a thick lining and often containing ingested grit that aids in the breakdown of seeds before digestion gladius - feather-shaped blade made of chitin that helps to support the body of a squid hermaphrodite - an organism that possesses both male and female sex organs during its life