could you please give a few examples of this group?
Arthropods, mollusks, annelid, and cnidarians.
Invertebrate
Familiar examples of invertebrates include arthropods (insects, arachnids, crustaceans, and myriapods), mollusks (chitons, snail, bivalves, squids, and octopuses), annelid (earthworms and leeches), and cnidarians (hydras, jellyfishes, sea anemones, and corals).

what is ocean sunfish? One of the heaviest known bony fishes in the world. what do they survive on? Small fish, fish larvae, squid, and crustaceans, etc. what is the last one? Large and diverse arthropod taxon. can the term that you just mentioned be classified? Yes, subdivided into five subphyla. can you name any? UNANSWERABLE where do these creatures get their name from? Greek "árthron" and "pous" could you please describe them? Invertebrates with segmented bodies and jointed limbs. can you state a feature of the term that you just mentioned? Absence of a vertebral column (backbone) how do they reproduce? They reproduce at least partly through sexual reproduction.
wiki:7763110
Invertebrate [SEP] Introduction
Some so-called invertebrates, such as the Tunicata and Cephalochordata, are more closely related to vertebrates than to other invertebrates. This makes the invertebrates paraphyletic, so the term has little meaning in taxonomy.