yes they are related
yes they are related
Anemone's, hydra, and jellyfish.
fish or jellyfish
No. Coral itself is a kind of living organism related to jellyfish and sea anemones. They do build shells made of calcium carbonate, however, which is a calcium salt.
Closely related: obelia jellyfish Not closely related (but still related): coral sea anemone
Genetically? Coral is closest related to anemone's. Beyond that, jellyfish are also close relatives.
Jellyfish and coral polyps are both species that are not bilaterally symmertrical, they are radially symmetrical, as are sea anemones which are also related to those species.
Coral Reefs don't really move and jellyfish move around, and sting people. Coral Reefs help other thins in the sea survive, where as jellyfish don't. The jellyfish are just there.
No, Jellyfish are pelagic organisms, this means that they live floating about in the upper layers of the open ocean, and while they can swim up and down in the water they are carried around in the ocean by water currents.
Cnidarians
All living lifeforms are related one way or another.
Corals and Jellyfish are cnidarians, sponges are not.