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

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Freshwater ecosystem is comprised of four major constituents, namely elements and compounds, plants, consumers, and deco..

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The human respiratory system is an efficient system of inspiring and expiring respiratory gases. This tutorial provides ..

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In this tutorial, find out more about certain types of inheritance that does not follow the Mendelian inheritance patter..

"Cronopio dentiacutus", a prehistoric mammal (an illustration)
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Mammals are a diverse group of organisms, where most of them develop their offspring within the uterus of the mother. Ov..