Skeleton is made entirely of cartilage in______________.

Sharks

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Tuna

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Rohu

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Catla

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Solution

The correct option is A Sharks
Fishes are classified into two groups: Chondrichthyes (cartilaginous endoskeleton) and Osteichthyes (bony endoskeleton).
Shark belongs to Chondrichthyes. They have a cartilaginous endoskeleton and paired nares. They are the jawed vertebrates with scales.
While Tuna and Rohu belong to Osteichthyes.

Thus, the correct answer is option A.

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Question 23
Skeleton is made entirely of cartilage in

(a) Sharks
(b) Tuna
(c) Rohu
(d) None of these

Which of the following fishes has a skeleton made of cartilage only?

Question 23
Skeleton is made entirely of cartilage is found in

(a) Sharks
(b) Tuna
(c) Rohu
(d) None of these

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