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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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A running water environment offers numerous microhabitats for many types of animals. Similar to plants, animals in lotic..

Origins of Life on Earth
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Earth was created around 4.5 billion years ago and life began not long after. Primitive life likely possessed the elemen..

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The arthropods were assumed to be the first taxon of species to possess jointed limbs and exoskeleton, exhibit more adva..