👉 The term "amphipoda" refers to a group of invertebrates that are characterized by their round, bony shell with an outer layer made up of numerous hollow chambers or chambers. These chambers are filled with air and are used for respiration, as well as for the production of calcium carbonate, which is essential for the growth and survival of many species. The term "amphipoda" can also refer to a type of bony shell that has been shaped into various shapes
amphipoda