Iron is a very important nutrient. The adult human body contains 3 to 4 grams of iron Of this 50 to 70 per cent is present in hemoglobin of blood. F-ach gram of hemoglobin contains 3 to 3.4.
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Iodine is an essential micronutrient. The total body content of iodine is about 50 mg. The blood level is about 8 to 12 micro- grams/dl.
It is the most abundant element in nature. It is highly reactive. So it occurs only in combined form as fluoride. Most of the fluoride in the body (96 per cent) is present in bones and teeth.
Towards the beginning of the 20th century, Charles Darwin formulated 'Darwinism' which then followed by Lamarckism, Mendelism. Before that Galileo, Copernicus had dedicated much to the field of science.
Religion has been a part and parcel of human life since time immemorial. Religion represents a great system of human thought. Religion is the predominant influence over the conduct of our lives.
As a student, I lead a life of honesty and simplicity. By habit I get up early from bed and clean my parts of the body and brush my teeth with a brush. I take physical exercise to keep my body healthy and fit and if it becomes advantageous for me, I take a walk of about one kilometer.