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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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Types and Causes of Brain Damage

This tutorial describes the different types and causes of brain damage. Find out how genetics, physical injury, lack of ..

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Photosynthesis – Photolysis and Carbon Fixation

Photosynthesis is the process that plants undertake to create organic materials from carbon dioxide and water, with the ..

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This tutorial investigates perception as two people can interpret the same thing differently. Know more about human perc..

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