2.  Name 2 fish that can inflate their bodies when in danger and explain why they inflate their bodies. ___________________    ___________________

3.  Which shark can be identified by the black markings on its pectoral and tail fins? ___________________

4.  Which ray is called the "devil ray", even though it is harmless to humans?___________________

5.  What are the  sea otter's two favorite foods?___________________

6.  What family do sea slugs belong to?___________________

7.  What mollusk can clap its shells together and propel itself through the water?  _____________________

8.  What crab has become immune to sea anemone stings?___________________

9.  Which worm can give extremely painful stings from the feathery bristles along its sides?________________

10.  Are corals plants or animals?___________________

11.  What is the name of special stinging cells that corals use to catch their prey? ___________________

12.  What mineral is found in most coral skeletons? ___________________

13.  How do sponges differ from all other marine invertebrates?__________________________________________