SanjeevR175615 SanjeevR175615

30-10-2022
Biology

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What characteristic below is a defining feature of class Chondrichthyes?A. Cartilaginous skeletonB. Closed circulatory system with a two chambered heartC. Swim bladderD. Bony skeleton

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EmanuelQ20179 EmanuelQ20179

30-10-2022

The best option would be A. Cartilaginous skeleton

Members of the Chondrichthyes all lack true bone and have a skeleton made of cartilage. This class includes sharks, skates, rays, and chimaeras.

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