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Human consciousness and behavior are an interesting topic since they are determined and controlled by the brain. Conscio..

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The sea was teeming with life. Eventually, through reproduction and continued variation, fish came about. There are over..

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

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Amphibians & Early Reptiles

Obtaining air outside an aquatic environment required species to acquire suitable adaptations, and this was the case of ..

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Principles of Hormonal Control Systems

Hormones are essential in the regulation of the activity of the various biological systems of the human body. The ineffi..

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Life, as we know it today, is presumed to have started in the sea and many of them were likely eukaryotic animal-like or..