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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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For human species to obviate extinction, reproductive mature adults should be producing viable offspring in order to con..

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The water cycle (also referred to as the hydrological cycle) is a system of continuous transfer of water from the air, s..

Genetics – Lesson Outline & Worksheets
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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..