why air bladder absent in chondrichythyes ?
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My friend did cuz my brothers saw it . Hope I'll be back soon .
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Answer:
here's ur answer dude
Explanation:
: Members of Class chondrichthyes are marine with streamlined body having cartilaginous endoskeleton. Due to the absence of air bladder, they have to swin constantly to avoid sinking. Air bladder is present in Osteicthyes which regulates buoyancy.
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