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Wednesday, December 3, 2008

Exponential Growth of Bacteria

Bacteria are invisible as individual entities. But they quickly divide and multiply, forming colonies that can be seen with the naked eye. A typical bacterium multiplies in a pattern of exponential growth, known to mathematicians as geometric growth. The rate of increase steadily increases, meaning that before long there's more bacteria than you'd like! The concept is useful for understanding certain physical and biological processes, including bacterial multiplication and the spread of slime mold. When you can see bacteria without a microscope, it means there are billions of entities present.

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