| Term | Definition |
|---|
| Demospongiae | spongin and silica spicules. Porifera |
| Calcarea | CaCO3 spicules. Porifera |
| Hexactinellida | 6 rays, silica. Porifera |
| Anthozoa | Sea anemones and true corals. No medusa stage. Cnidaria |
| Cubozoa | Have gastric cilli. Cubed shape. Cnidaria |
| Scyphozoa | most "jellyfish" medusa phase is dominant life cycle stage in most scyphozoans. Free swimming. Cnidaria |
| Hydrozoa | Have a polyp and medusa stage. Their colonies are composed of many specialized polyps called "zooids". Cnidaria |
| Turbellaria | Free living flatworms. Platyhelminthes |
| Trematoda | Flukes. Platyhelminthes |
| Cestoda | Tapeworms. Platyhelminthes |
| Oligogchoaeta | Earth worms. Annalida |
| Polychaeta | Have parapodia with setae. Annalida |
| Hiridinea | Leeches. No setae...have suckers. Annalida |
| Bivaliva | 2 valves. Mollusca |
| Gastropoda | Snails and slugs. secondariliy asymmetrical (torsion). Mollusca. |
| Cephalapoda | Squids, nautilis, octopus, etc. Mollusca |
| Polyplacophora | Chitons. Mollusca |
| asteroidea | Sea Stars. Echinodermata |
| Ophiuroidea | Brittle and basket stars. Echinodermata |
| echinoidea | sea urchins and sand dollars. Has test. Echinodermata |
| Holothuroidea | Sea cucumbers. Has respiratory trees. Echinodermata |
| Crinoidea | Feather Stars and Sea Lilies. Echinodermata |
| Chondrichthyes | Sharks, skates, and rays. Actinopterygii and Sarcopterygii. Chordata |
| Amphibia | Frogs, toads, and caecilians). Chordata |
| Reptilia | Lizards, snakes, turtles, and crocodiles. Chordata |
| Aves | Birds. Chordata |
| Mammalia | 4 chambered heart, hair, nourish young with milk. muscular diaphragm, hemeothermic, uterus with placenta, placentalChordata. |
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