Do you know what you're made of? The answer is cells--thirty trillion of them--all working together to form one awesome human being: YOU.
'Fun, inspiring, and well researched.' - Kirkus Reviews, starred review of One Million Insects Did you know that the number of microorganisms in your body outnumber your own cells by 10 to 1? Or that every second, your body produces around 25 million new cells? Or that a human being has fewer chromosomes...
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