Final answer:
Crustaceans can exhibit different feeding behaviors: some are predatory, some are suspension feeders, and some are parasites.
Step-by-step explanation:
Crustaceans can exhibit different feeding behaviors depending on the species.
Some crustaceans are predatory and actively hunt their prey, such as crabs that pry open mollusk shells to access the meat.
Others are suspension feeders and absorb suspended nutrients from passing water, like some shrimp that filter out small particles as food.
Additionally, certain crustaceans can be parasites that establish a relationship with a host, such as the endoparasitic species Sacculina that forces crabs to incubate its eggs.