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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..

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The hominid family diversified from the apes around 6 to 8 million years ago. Since then, the evolutionary path has prov..

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Plants protect themselves by releasing hydrogen peroxide to fight against fungal invasion. Another way is by secreting c..

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The Conscious & Unconscious Nervous System

This tutorial elaborates on how the nervous system works, particularly at the tissue level of the brain. There are three..

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The water cycle (also referred to as the hydrological cycle) is a system of continuous transfer of water from the air, s..

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

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