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28 Cards in this Set
- Front
- Back
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aboral
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region of an animal opposite the mouth
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ambulacra
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radiating grooves where podia of the water vascular system project outside the organism
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ampullae
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muscular vesicle above the tube foot in water vascular systems
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aristotles lantern
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masticating apparatus
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bursae
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saclike cavity pouches opening at bases of arms and functioning in respiration and reproduction
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cardiac stomach
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can be everted through mouth to enevelope prey site of digestion
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collar
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portion of the body
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cuverian tubules
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sticky often toxic elongate internal organs expelled to entangle potential predators can be regnerated
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dermal branchia
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where gas exchange occurs
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dorsal nerve cord
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handles nervous coordition in larva form
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gill slits
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openings to the gills
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lateral canal
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canal that runs parrelll
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madreporite
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sievelike structure that is the intake of the water vascular system pressure regulator and filter
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oral
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region that bares the mouth
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ossicles
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small separate pieces of endoskeleton or tiny bones in the middle of the ear support
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pedicellaria
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one of many minute pinicerlike organs on surface
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pentaradial symmetry
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5 star symmetry
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polian vesciles
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vesicles openign into a ring canal
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probscis
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snout or trunk a tubular sucking or feeding organ with the mouth at the end or sensory and defensive organ at anterior end of vertebrates
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pyloric area
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where the pyloric stomach is held
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pyloric stomach
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recieve secretions of digestive glands for chemical digestion
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radial canal
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canals along the ambulacra radiating from the rind canal
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respiratory tree
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vertebrae lung
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ring canal
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portion of water vascular system encircling mouth
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stone canal
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portion of water vascular system leading from the madreporite to the ring canal
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trunk
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portion of the body
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tube feet
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numerous small muscular fluid filled tubes projecting, part of water vascular system, used in locomotion clinging food handling and respiration
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water vascular system
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system of fluid filled closed tubes and ducts, used to moved tentacles and tube feet
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