Part one of what I hope will be series of at least two articles on how different lifeforms differ.

To start off, this article will give an overview of the hierarchical classification of biological life, with a focus on the nomenclature of biological nomenclature.

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This is a simple method to make it easier to calculate squares in your head (or on paper). The key is the following equation:

x² = (x+y)(x-y) + y²

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