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.
Help
| 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 |
|
