Teeth are made up of calcium, phosphorous and other minerals that give them their hard enamel shell. Bones, while they also contain calcium, only use calcium as the filler material between their main material — protein collagen. It's this regenerative collagen that allows b...
Out go the old teeth; in come the new. Sam is growing up, And so are you. 他很爱惜自己的牙齿。 恒牙会陪伴他一生。 旧的牙一掉, 新的牙就长出来了。 Sam在长大, 你也是。 Many of Sam's friends have loose teeth. Lucy can...
Which of the following structure(s) help in the mastication and mixing up the food throughly? View Solution A needle made up of iron floats on the water surface due to View Solution Exams IIT JEE NEET UP Board Bihar Board CBSE Free Textbook Solutions ...
It is made up of around 700 different species of bacteria, the second-greatest diversity in the human body after the gut, as well as a host of fungi and viruses. “They are living in the sticky film stuck to the teeth and also to the soft tissues,” says Hirschfeld. “This sticky ...
A CASKET filled with the baby teeth of Queen Victoria's children and casts the monarch had made of her offsprings' arms and legs are among the unusual items going on show at Buckingham Palace. Buckingham Palace recreates Victorian age with ballroom waltz Royal youngsters' baby teeth were kept...
根据第一段的Spider(蜘蛛)silk,which is five times stronger than steel,no longer holds the record as the strongest material found in nature.Scientists have discovered that the teeth of a limpet (帽贝) are made of even tougher material表示"虽然蜘蛛丝的强度是钢的五倍,但是它不再是自然界中最坚固...
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1. To turn up by digging with the snout or nose: hogs that rooted up acorns. 2. To cause to appear or be known. Used with out: an investigation that rooted out the source of the problem. v.intr. 1. To turn over the earth with the snout or nose. 2. To search or rummage for...
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1. Dental Floss are implements that are used to clean between the teeth. 2. Smoothly use dental floss to clean interspaces between teeth without shredding or stretching and enjoy flossing with strong mint flavour which is active for freshening up a smell of the mouth...