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Physical growth
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This tutorial elaborates on the physical development of humans, particularly from puberty to adulthood. Read this tutori..

New Zealand Fauna
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Photosynthesis and respiration
Plant Metabolism

Plants are responsible for incredible feats of molecular transformation. Plant processes, such as photosynthesis, photop..

Freshwater Ecology
Freshwater Ecology

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

Early Earth
The Origins of Life

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