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Nutrients in the soil are essential to the proper growth of a land plant. This tutorial deals with the properties of soi..
This lesson explores the impact of biosecurity threats, and why they need to be identified and managed. Examples to incl..
This tutorial looks at some of the communities in freshwater lentic habitats. For instance, symbiosis occurs in a commun..
Plant cells have plastids essential in photosynthesis. They also have an additional layer called cell wall on their cell..