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Earth was created around 4.5 billion years ago and life began not long after. Primitive life likely possessed the elemen..

Balanced Diet
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Proteins and minerals can be derived from various dietary sources. They are essential for the proper growth and developm..

Biological Energy
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ATP is the energy source that is typically used by an organism in its daily activities. The name is based on its structu..

Chemical composition of the body
Chemical Composition of the Body

The body is comprised of different elements with hydrogen, oxygen, carbon, and nitrogen as the major four. This tutorial..

Birth of a Human Baby
Birth of a Human Baby

Following nine months inside the mother's womb is the birth of the baby. Know the different stages of the birthing proce..

Genetic engineering
Genetic Engineering Advantages & Disadvantages

This tutorial presents the benefits and the possible adverse eventualities of genetic engineering. Know more about this ..