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This lesson is about the methods used for ecological research, such as quadrat and transect sampling, canopy fogging, an..

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Lotic communities have conditions that are rather harsh for typical plants. Thus, the diversity of plant species in loti..

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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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This tutorial recognizes the importance of food as a source of energy that will fuel many biological processes. A good d..

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The Water Cycle

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

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