The average human body is made up of more than how many cells?

  • 37.2 trillion correct

    How did these researchers come up with 37.2 trillion? They actually broke down the number of cells by organs and cell types, going through the literature available to come up with a detailed list of volumes and densities in everything from intestines to knees. So, for example, there are 50 billion fat cells in the average body, and 2 billion heart muscle cells. Adding all those up, they got 37.2 trillion. (This doesn’t include any of the millions of microbes living on you, by the way). National Geographic.

  • 102 million
  • 8.5 billion
  • 90.8 trillion
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