Explore:

Who Lives on the Oyster?

Objective: The students will be able to identify the organisms that rely on either Oysters or Zebra Mussels for their habitat.

Materials:

• Hand lense
• Oyster Shell
• Zebra Mussel Shell 

Procedure:

1. Examine the Oyster shell provided by your instructor. You will see several different patterns left on it by various organisms. Use this evidence to determine their type and number, and fill in the table below.

   Name of Organism	Number Present
   a
   b
   c
   d
   e

1. Examine the Zebra Mussel shell and isolate any organisms that left behind evidence that they colonized the shell. Again, use the data table below to organize your information.

   Name of Organism	Number Present
   a
   b
   c
   d
   e