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Apart from vitamins, the human body also requires high energy sources such as carbohydrates and fats. If you want an ove..

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Genetic Engineering Advantages & Disadvantages

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

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This tutorial looks at the relationship between organisms. It also explores how energy is passed on in the food chain an..

Birth Control and Contraception
Birth Control and Contraception

Different pregnancy and birth control and contraception strategies are described. Read this tutorial to learn each of th..