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Invertebrates
4th Grade McGraw-Hill Science 2005, Unit B, Lesson 2
Vocab Term | Definition |
---|---|
cnidarian | invertebrate with poison stingers on tentacles |
endoskeleton | internal supporting structure of an echinoderm - often has many protective spines |
echinoderm | spiny-skinned invertebrate |
mollusk | soft bodied invertebrate |
arthropod | invertebrate with jointed legs and a sectioned body |
exoskeleton | hard skeleton on the outside of an arthropod's body |