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This tutorial looks at some of the communities in freshwater lentic habitats. For instance, symbiosis occurs in a commun..

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Following nine months inside the mother's womb is the birth of the baby. Know the different stages of the birthing proce..

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Population Growth and Survivorship

This lesson looks at population attributes, regulation, and growth. It also covers population genetics, particularly gen..

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Life, as we know it today, is presumed to have started in the sea and many of them were likely eukaryotic animal-like or..

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