how does a fish manage to rise up and move down in water
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Answered by
18
Open Swim Bladders. When you see fish swim to the surface and open their mouths to gulp air, many aren't breathing that air; they likely still breathe through their gills. Instead, these fish are filling their swim bladders with air to help maintain buoyancy.
Answered by
5
With its fins.
It helps for swimming.
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