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Skeletal muscle contracts rapidly but has a limited range of extension.

It is found in the movement of appendages and jaws.

Cardiac muscle is found only in the heart, allowing it to contract and pump blood round the body.

Cartilaginous fish produce a small number of large, yolky eggs.Mammals have three bones in the middle ear and a cochlea in the inner ear.They are clothed in hair and their skin contains glands which secrete sweat.It contracts slowly but maintains contractibility over a wide range of stretch lengths.It is found in such organs as sea anemone tentacles and the body wall of sea cucumbers.

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