Question

Features of cartilaginius fishes ?

Answer 1

Answer:

Skeletons made of cartilage rather than bone. Cartilage is supportive tissue that does not have as much calcium as bones, which makes bones rigid. Cartilage is softer and more flexible than bone.

Answer 2

Explanation:

Features:

• Paired fins
• Paired nostrils
• Scales
• Two-chambered hearts
• Skeletons made of cartilage rather than bone. Cartilage is supportive tissue that does not have as much calcium as bones, which makes bones rigid. Cartilage is softer and more flexible than bone

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