AMERICAN: THE BILL HICKS STORY


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From: irrifeexins Date Added: 3/5/2013 12:18:34 AM

A tooth (plural teeth) is a undersized, calcified, whitish form start in the jaws (or mouths) of multitudinous vertebrates and used to defeat down food. Some animals, particularly carnivores, also take teeth repayment for hunting or owing defensive purposes. The roots of teeth are covered nearby gums. Teeth are not made of bone, but rather of multiple tissues of varying density and hardness.

The community structure of teeth is be like across the vertebrates, although there is respectable converting in their fabric and position. The teeth of mammals be struck by deep roots, and this figure is also create 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 fastened to the inner come up of the jaw by harmonious side. In cartilaginous fish, such as sharks, the teeth are attached around rough ligaments to the hoops of cartilage that accumulate the jaw.





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