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Plantlife can be studied at a variety of levels, from the molecular, genetic and biochemical level through organelles, c..

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The human body is capable of regulating growth and energy balance through various feedback mechanisms. Get to know the e..

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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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Animal Water Regulation

Animals adapt to their environment in aspects of anatomy, physiology, and behavior. This tutorial will help you understa..

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Biological Cell Defense

Organisms employ different strategies to boost its defenses against antigens. Humans have an immune system to combat pat..