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This tutorial elaborates on the physical development of humans, particularly from puberty to adulthood. Read this tutori..

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Gene Regulation in Eukaryotes

Learn about the general structure of a eukaryotic gene, the transcription factors, and post-transcriptional regulation....

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Biological Cell Introduction

It only takes one biological cell to create an organism. A single cell is able to keep itself functional through its 'mi..

Biological Energy
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ATP is the energy source that is typically used by an organism in its daily activities. The name is based on its structu..

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