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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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Lentic or still water communities can vary greatly in appearance -- from a small temporary puddle to a large lake. The s..

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Chromosome Mutations – I

Mutations can also influence the phenotype of an organism. This tutorial looks at the effects of chromosomal mutations, ..

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Muscle cells are specialized to generate force and movement. Learn about the different types of muscle tissues in this t..

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The Hominids

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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Fish

The sea was teeming with life. Eventually, through reproduction and continued variation, fish came about. There are over..