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Simple Invertebrates

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Question
Answer
Phylum of animals without backbones?   Invertebrates  
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Phylum of animals with backbones?   Vertebrates  
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Two phylums of the Animal Kingdom?   Vertebrates & Invertebrates  
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7 classes of Invertebrates?   sponges, cnidarians, mollusks, annelids, arthropods, echinoderms.  
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Starfish   Echinoderms  
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Planaria   flatworms  
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oyster   mollusks  
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earthworm   annelids  
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grasshopper   arthropods  
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jellyfish   cnidarians  
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simplest animals?   sponges  
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Sponges?   remain attached to a solid object.  
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flat bodies?   flatworms  
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bell shaped?   cnidarians  
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cnidnarians?   strong sting.  
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Flatworm?   Planaria  
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Round, hollow-tube bodies?   Roundworms  
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5 point symmetry?   Echinoderms  
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Echinoderms?   Starfish  
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Invertebrate Chordates?   Nerve cord, but no backbone.  
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Mollusks?   soft body, usually with a shell.  
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Oyster?   Mollusk  
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Segmented body?   Annalid.  
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Annalid?   earthworm  
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Created by: kastega