Marine invertebrates are all part of the kingdom square . I his Plantae Eukarya Animalia

Marine invertebrates are all part of the kingdom Animalia. Invertebrates are animals that do not have a backbone or spinal column. They include a wide variety of organisms such as jellyfish, starfish, and crabs. These animals are multicellular and belong to the domain Eukarya, which includes all organisms with eukaryotic cells. However, the specific kingdom they belong to is Animalia.