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Different mental disorders are described here. Read this tutorial to get an overview of schizophrenia, affective mood di..

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The movement of molecules (specifically, water and solutes) is vital to the understanding of plant processes. This tuto..

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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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Chromosome Mutations

Mutations can also influence the phenotype of an organism. This tutorial looks at the effects of chromosomal mutations, ..

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Indicator Species and Endangered Species

Certain species are capable of expressing characteristics indicative of the state of the ecosystem they occupy. They are..