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

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Genetics – Lesson Outline & Worksheets

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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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Physiological Homeostasis

Homeostasis is essential to maintain conditions within the tolerable limits. Otherwise, the body will fail to function p..

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Human Reproduction and Fertilization

For human species to obviate extinction, reproductive mature adults should be producing viable offspring in order to con..

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This tutorial deals with the abiotic factors of the freshwater environment that determine what sort of life would be sui..