4th Grade McGraw-Hill Science 2005, Unit B, Lesson 2

Quiz yourself by guessing what should be in each of the black rectangles below before clicking on it to display the answer.
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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  


   

 
 

 
 

 

 
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