Description should include characteristics of mollusks and crustaceans, including
- invertebrates
- shell hardness
- methods of obtaining food
- number of arms and legs
- methods of movement.
Process/Skill Questions:
- How does the body of a mollusk differ from a crustacean?
- How does a mussel obtain food?
- How many legs are there on a crab? Crayfish?
- What are the functions of the various pairs of legs on crustaceans? How does the function of the legs of crustaceans differ from that of cephalopods?