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Dinosaurs represented a major turn in the evolutionary development of organisms on Earth. The first dinosaurs were presu..

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

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Nutrients in the soil are essential to the proper growth of a land plant. This tutorial deals with the properties of soi..

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Proteins have a crucial role in various biological activities. Get to know how proteins are able to perform as enzymes, ..

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