microorganism facts

Careful estimates of total microbial cell numbers on Earth,
specifically teh number of prokaryotes show this number to be on the
order of 5 x 10 ^30 cells.

The total amount of carbon present in this very large number of very small cells equals that of all the plants on earth!

The colective content of nitrogen and phosphorous in prokaryotic cells is over 10 times that of all plant biomass.

(Brock 2003)

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