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What is a watery skeleton called?

Updated: 8/11/2023
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15y ago

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All fish are vertebrates (except for hagfish which do not have true vertebrae and are considered proto vertebrates ).

Fish have an endoskeleton which is the support structure inside their bodies .About 90% to 95% of the world's fish species are bony fish. The remainder are cartilaginous fish such as sharks .The skeleton of a fish is either made of cartilage which is the flexible connective tissue found around our joints and in our nose or bones .

Bony fish also have a hard, bony plate, called an operculum, covering their gills. Some have rays, or spines, in their fins. Bones are very dense while cartilage is light. There are 25,000 types of bony fish . Some common types are :- Salmon, tuna, goldfish, seahorses, eels. Examples of cartilaginous fish are sharks, rays and skates .

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Q: What is a watery skeleton called?
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