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This tutorial presents Gregor Mendel's law of dominance. Learn more about this form of inheritance and how it can be pre..

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Stems primarily provide plants structural support. This tutorial includes lectures on the external form of a woody twig ..

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The evolution of the species of the genus "Homo" led to the emergence of modern humans. Find out more about human evolut..

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IQ, Creativity and Learning

Human intelligence provided the means to utilize abstract ideas and implement reasoning. This tutorial takes a further l..

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