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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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Animals adapt to their environment in aspects of anatomy, physiology, and behavior. This tutorial will help you understa..

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Illusions are the perceptions and sensory data obtained from situations in which human error prevents us from seeing the..

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ATP is the energy source that is typically used by an organism in its daily activities. The name is based on its structu..

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This tutorial looks at the mutation at the gene level and the harm it may bring. Learn about single nucleotide polymorph..

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In plants, growth occurs in meristems, which are the site of repeated cell division of unspecialized cells. These cells ..