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Obtaining air outside an aquatic environment required species to acquire suitable adaptations, and this was the case of ..

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Molecules move within the cell or from one cell to another through different strategies. Transport may be in the form of..

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Lentic or still water communities can vary greatly in appearance -- from a small temporary puddle to a large lake. The s..

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This tutorial looks at the adaptations of freshwater plants for them to thrive in still water habitats. Familiarize your..

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Genes are expressed through the process of protein synthesis. This elaborate tutorial provides an in-depth review of the..

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DNA is a double helix structure comprised of nucleotides. A nucleotide, in turn, is made up of phosphate molecule, deoxy..