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হাড়ের ধাত্র ও দাঁতের এনামেল, ডেনটিন ও সিমেন্টামে ক্যালসিয়াম, ম্যাগনেসিয়াম ও ফসফরাস কেলাসাকারে জমা থাকে।
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Answer ( 1 )
হাড়ের ধাত্র ও দাঁতের এনামেল, ডেনটিন ও সিমেন্টামে ক্যালসিয়াম, ম্যাগনেসিয়াম ও ফসফরাস কেলাসাকারে জমা থাকে।