Cartilaginous fishes do not contain

Fins

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Gill cover/operculum

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Scales

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Mouth

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Solution

The correct option is B
Gill cover/operculum

Cartilaginous fish have a skeleton made from cartilage instead of bone. Cartilagenous fish do not have the operculum

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Similar questions

Cartilaginous fishes do not have–

	Column-I		Column-II
(a)	Scales and paired fins absent	(i)	Torpedo
(b)	Claspers on pelvic fins of males	(ii)	Cyclostomes
(c)	4 pairs of gills covered with operculum	(iii)	Chondrichthyes
(d)	Electric organs	(iv)	Osteichthyes

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