Final answer:
Jellyfish have a medusa shape and belong to the phylum Cnidaria.
Explanation:
Jellyfish have a medusa shape, like an upside-down bowl. They belong to the phylum Cnidaria and exhibit two distinct body plans: polyp and medusa. The medusa form is motile, with the mouth and tentacles hanging down from a bell-shaped body.
Learn more about Cnidarians here:
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