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The nervous system is essentially a biological information highway. This tutorial gives an overview of the nervous syste..

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Lotic communities have conditions that are rather harsh for typical plants. Thus, the diversity of plant species in loti..

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For human species to obviate extinction, reproductive mature adults should be producing viable offspring in order to con..

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This tutorial introduces flowing water communities, which bring new and dithering factors into the equation for possible..

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Evolution of Life – Ancient Earth

Autotrophs flourished, absorbing carbon and light. Soon after, primitive life forms that could assimilate oxygen thrived..