The swim bladder in teleost fish serves mainly to
AFilter metabolic waste from the blood
BStore oxygen for use during respiration
CRegulate the specific gravity of the fish for buoyancyCORRECT
DProduce digestive enzymes for food breakdown
GCEAgricultural ScienceFisheries and Forestry2022
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Why the answer is C, and why the others tempt you.
The swim bladder is a gas-filled organ that allows teleost (bony) fish to maintain neutral buoyancy at various water depths without expending muscular energy. By adjusting the amount of gas in the bladder, the fish can match its density to the surrounding water. It is not primarily used for respiration, waste filtration, or digestion.
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