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ECHINODERM VOCAB ONLY. A radially symmetrical marine invertebrate with an endoskeleton, water-vascular system, and tube feet such as a sea star, sea urchin.

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Presentation on theme: "ECHINODERM VOCAB ONLY. A radially symmetrical marine invertebrate with an endoskeleton, water-vascular system, and tube feet such as a sea star, sea urchin."— Presentation transcript:

1 ECHINODERM VOCAB ONLY

2 A radially symmetrical marine invertebrate with an endoskeleton, water-vascular system, and tube feet such as a sea star, sea urchin or sea cucumber _________________________ Special type of radial symmetry in which body parts extend outward along 5 spokes _______________ One of the small calcium carbonate plates that forms the endoskeleton of echinoderms ________________ echinoderm pentaradial ossicle

3 Surface of a starfish on which the mouth is located______________ One of the many small, flexible, fluid filled tubes that project from the body of an echinoderm and are used in locomotion, feeding, gas exchange, and nitrogen excretion _________________ Small pincher-like structure on the surface of certain echinoderms that keep the surface clean ________________ Oral surface (ventral) Tube feet pedicellaria

4 Surface opposite the mouth and a starfish_______________ Sieve-like opening on the aboral surface of a starfish through which water enters the water vascular system _________________ A mass of nerve cells ________________ Aboral surface (dorsal) madreporite ganglion

5 A network of water-filled canals in an echinoderm _____________ Part of the water vascular system that connects the madreporite and ring canal _____________ Bulb-like sac at the top of the tube foot which controls water entering and leaving the foot ________________ Water vascular system Stone canal ampulla

6 Portion of an echinoderm’s stomach that is extruded through the mouth during feeding __________________ The fluid that is circulated through the body of an animal with an open circulatory system _________________ Winged larva seen in echinoderms ________________ Cardiac stomach hemolymph bipinnaria

7 Special type of symmetry seen in starfish with 5 arms _____________ Development in which the offspring start as small versions of adults Type of circulatory system in which blood is contained in vessels ___________________ Pentaradial symmetry Direct development closed

8 In a sea star the stomach that is connected to the digestive glands__________________ The hemolymph-filled space or body cavity of some invertebrates _________________ One of the many hollow tubes that project from the surface of a sea star through which gas exchange and nitrogen excretion takes place ________________ Pyloric stomach hemocoel Skin gills

9 Nerve that encircles the mouth in a sea star __________________ Organism whose embryonic blastopore becomes the anus _______________ Organism without a backbone ________________ Nerve ring deuterostome invertebrate

10 Type of development in which offspring hatch as an immature larva and must change into their adult form _____________ Joining of an egg and sperm outside the female’s body _________________ Organism that lives in the ocean (salt water) ________________ indirect external fertilization marine

11 Nerve that runs along inside the ambulacral ridge in each arm of a starfish _____________ Portion of the sea star’s water vascular system that runs along inside the ambulacral ridge in each arm _________________ Groove on the oral surface of a sea star that holds the tube feet ________________ Radial nerve Radial canal Ambulacral groove

12 Greenish digestive enzyme that breaks down fat _____________ Space that surrounds the internal organs _________________ Type of skeleton found inside the body ________________ bile coelom endoskeleton

13 Type of symmetry seen in echinoderms in which body parts are arranged around a central axis _____________ Development in which the offspring start as an immature larva and undergo metamorphosis to become adults_________________ Type of circulatory system in which blood is NOT contained in vessels and flows loose inside the body cavity and tissue spaces ___________________ Radial symmetry Indirect development open


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