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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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Lymphocytes are a type of white blood cell capable of producing a specific immune response to unique antigens. In thi..

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The cell is defined as the fundamental, functional unit of life. Some organisms are comprised of only one cell whereas o..

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The Earth's ecosphere was rapidly changing and throwing up a wide range of ecological niches that new adaptive organisms..

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Animals living in aquatic habitats have diversified and evolved through time. They eventually occupy ecological niches a..

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