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Question : Choose the wrong pairing of a class and its general characters .

Answer»

CYCLOSTOMATA : Pairedfins , jaws and scales are absent
Chondrichthyes : Teeth are MODIFIED placoid scales which are backwardly directed.
Osteichthyes : Four PAIRS of gills without operculum are present .
Amphibia: TYMPANUM represents the EAR .

Answer :C


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