5.a) For a crayfish where is the nerve cord located inthe crayfish? Where is the brain located in
the crayfish? It is composed of paired ganglia. What is a ganglion?What are
the nerves called that go around the esophagus?
5.bFor a crawfish name the paired glands that function in excretionin the crayfish. Give both
names. Where are they located? How do they function?
