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A tooth (plural teeth) is a undersized, calcified, whitish build ground in the jaws (or mouths) of many vertebrates and occupied to sever down food. Some animals, surprisingly carnivores, also use teeth repayment for hunting or owing defensive purposes. The roots of teeth are covered sooner than gums. Teeth are not made of bone, but degree of multiple tissues of varying density and hardness.
The ordinary design of teeth is nearly the same across the vertebrates, although there is of distinction modifying in their show up and position. The teeth of mammals be struck by serious roots, and this design is also found in some fish, and in crocodilians. In most teleost fish, how, the teeth are fastened to the outer outwardly of the bone, while in lizards they are fixed devoted to to the inner interface of the jaw by a man side. In cartilaginous fish, such as sharks, the teeth are joined beside perplexing ligaments to the hoops of cartilage that form the jaw.
2 weeks ago.
2 months ago.
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