Biology, asked by naomipradhan, 11 hours ago

name the animal group if they do not have operculum and they are covered with microscopical placoid scales?​

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Answered by cjsdnjvmmmmmmmmmmmm
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Answer:

The morphology of a scale can be used to identify the species of fish it came from. Most bony fishes are covered with the cycloid scales of salmon and carp, ...

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