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scuba divers use a bcd to control buoyancy. it is essentially a bag that can be inflated or deflated to prevent excessive sinking or floating. how do bony fish accomplish this?
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scuba divers use a bcd to control buoyancy. it is essentially a bag that can be inflated or deflated to prevent excessive sinking or floating. how do bony fish accomplish this?

User RTA
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5 votes

Answer:

They adjust the level of gasses in their swim bladder.

Step-by-step explanation:

User Malisit
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