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Leaves are the major photosynthetic organ of a plant. Apart from that, they are also crucial to water movement. In this ..

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Muscle cells are specialized to generate force and movement. Learn about the different types of muscle tissues in this t..

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A running water environment offers numerous microhabitats for many types of animals. Similar to plants, animals in lotic..

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The nervous system is essentially a biological information highway. This tutorial gives an overview of the nervous syste..

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It only takes one biological cell to create an organism. A single cell is able to keep itself functional through its 'mi..