Question

Mention three characteristics of the class to which shark belongs.​

Answer 1

Answer: Elasmobranchii (sharks, skates and rays) and Holocephali (chimaera). Resemble bony fish and terrestrial vertebrates in having jaws and paired appendages. An electroreceptive system is well developed. Endoskeleton entirely cartilaginous.

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Answer 2

Answer:

1. Elasmobranchii (sharks, skates and rays) and Holocephali (chimaera).
2. Resemble bony fish and terrestrial vertebrates in having jaws and paired appendages.
3. An electroreceptive system is well developed. Endoskeleton entirely cartilaginous.

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