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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..

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Certain species are capable of expressing characteristics indicative of the state of the ecosystem they occupy. They are..

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Plant cells have plastids essential in photosynthesis. They also have an additional layer called cell wall on their cell..

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Plant Meristems and Growth

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

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This tutorial looks at the relationship between organisms. It also explores how energy is passed on in the food chain an..

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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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