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Freshwater ecology focuses on the relations of aquatic organisms to their freshwater habitats. There are two forms of co..

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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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This tutorial noted some of the physical and chemical factors that provide the framework of a running water community in..

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Control of Growth & Development tutorials look at how the genetic makeup determines the biological processes on a da..

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In plants, growth occurs in meristems, which are the site of repeated cell division of unspecialized cells. These cells ..

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Still Water Animals

Animals living in aquatic habitats have diversified and evolved through time. They eventually occupy ecological niches a..