The marine hydrozoan Obelia (a) is seen mainly in the medusa form (b) lacks cnidocytes (c) has reproductive polyps that produce eggs and sperm (d) is one of the largest jellyfish known (e) alternates sexual and asexual stages during its life cycle
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Step 1: Obelia is not one of the largest jellyfish known, as it is a marine hydrozoan and not a jellyfish. Show more…
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