Are jellyfish and cuttlefish types of fish ? Why / why not ?
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Jellyfish and Cuttlefish.
Jellyfish are invertebrates as they do not have a backbone.
They are not real fishes because they do not have bones, brain, and heart.
They use freshwater rather than blood as a nutrient.
Cuttlefish are marine animals from the phylum sepiida.
They are also not fish because they are mollusk.
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