They are classified as Invertebrates. Answer choice B. Invertebrates is correct. Also here is a bit more information which is a list of invertebrate species.. <span>1. Clams, </span>2. Squids,<span> 3. Crustaceans, 4. Arthropods, </span><span>5. Insects, </span><span>6. Worms, 7. Jellyfish, </span> I hope this helps!
