The skin of a shark is covered with which typ | vedclass

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Question

(C) Sharks belong to the class $Chondrichthyes$ (cartilaginous fishes). Their skin is characterized by the presence of $placoid$ scales. These scales

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Placoid

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(C) Sharks belong to the class $Chondrichthyes$ (cartilaginous fishes). Their skin is characterized by the presence of $placoid$ scales. These scales are structurally similar to teeth,consisting of a central pulp cavity surrounded by dentine and covered by an enamel-like substance. $Cycloid$ and $ctenoid$ scales are typically found in bony fishes $(Osteichthyes)$,while $cosmoid$ scales are found in lungfishes and some fossil fishes.

The skin of a shark is covered with which type of scales?

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