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2
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Live birth performed by sharks
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3
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The phylum for cartilaginous fish.
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5
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Live egg birth performed by sharks
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7
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A gas filled chamber which help keep many fish afloat (sharks lack this)
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8
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Egg birth by sharks
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9
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Bony flap protecting fishes gills (sharks lack this)
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1
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A system used to help cartilaginous fish fine their vibrations through vibrations in the water.
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4
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A type of cartilaginous fish
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6
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A type of cartilaginous fish
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