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Stegall-Zoology #4

Simple Invertebrates

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

 



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