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Humans are capable of only one mode of reproduction, i.e. sexual reproduction. Haploid sex cells (gametes) are produced ..

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This tutorial digs into the past to investigate the origins of life. The section is split into geological periods in the..

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Meet the colorful takahē, an extremely rare flightless bird. Find out more about its unique features and why they matte..

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This tutorial investigates the genetic diversity in more detail. It also delineates how certain alleles are favored over..

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Viruses possess both living and non-living characteristics. This unique feature distinguishes them from other organisms...

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Geological Periods

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