Chondrichthyes differ from Osteichthyes in po | vedclass

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(C) Chondrichthyes (cartilaginous fishes) and Osteichthyes (bony fishes) are two classes of the phylum Chordata.$1$. Chondrichthyes possess a cartilag

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Claspers

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(C) Chondrichthyes (cartilaginous fishes) and Osteichthyes (bony fishes) are two classes of the phylum Chordata.$1$. Chondrichthyes possess a cartilaginous endoskeleton, whereas Osteichthyes possess a bony endoskeleton.$2$. Chondrichthyes lack an air bladder (swim bladder), which is present in Osteichthyes to regulate buoyancy.$3$. Chondrichthyes have placoid scales, while Osteichthyes have cycloid or ctenoid scales.$4$. Male Chondrichthyes possess pelvic fins with claspers, which are copulatory organs used for internal fertilization. These are absent in Osteichthyes.$5$. Chondrichthyes have $5-7$ pairs of gills without an operculum (gill cover), whereas Osteichthyes have $4$ pairs of gills covered by an operculum.Therefore, the presence of claspers is a distinguishing feature of Chondrichthyes.

Chondrichthyes differ from Osteichthyes in possessing $-$

Similar Questions

Cartilaginous fishes belong to the class

$S$ - Statement: Shark is an example of cartilaginous fish.
$R$ - Reason: The endoskeleton is made of cartilage.

Which of the following has an endoskeleton made of cartilage?

Identify the figure.

Ambulacral grooves are absent in the living forms of the class:

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