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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..

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Ferns and their relatives are vascular plants, meaning they have xylem and phloem tissues. Because of the presence of va..

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Myelin sheath is essential for a faster conductivity of signals. Know more about this feature of some neurons in the Cen..

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The diversification of several new species from a recent ancestral source, each adapted to utilize or occupy a vacant ad..

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