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Plants are characterized by having alternation of generations in their life cycles. This tutorial is a review of plant m..

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Gregor Mendel's studies into Monohybrid and Dihybrid crossing and Charles Darwin's study of evolution and natural select..

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Autotrophs flourished, absorbing carbon and light. Soon after, primitive life forms that could assimilate oxygen thrived..

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A still body of water may be disturbed by a variety of factors. One of them is wind. In fact, it is considered as the pr..

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This tutorial elaborates on how the nervous system works, particularly at the tissue level of the brain. There are three..