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Each year, From left, Camp Verde High School students Cheyenne Reece, Michael Martin and Amanda Punkoney proudly show a few of the exhibits their class will have on display (Photos by Bill Helm)

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SciTech students find animals 'breathtaking,' nervous system 'not a simple organ'

In humans, a properly rested heart should beat between 60 and 100 times each minute, a pace that Katrina Esparza calls "non-stop."