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5 Cards in this Set
- Front
- Back
It has been estimated that there are how many different species of bacteria on earth?
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10 million to 1 billion
5x10^30 bacterial cells on earth |
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How many different bacterial species are in the normal flora of the mouth?
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400-500
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How many different bacterial species are in the normal flora of the GI tract?
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300-1000 different species in GI tract
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How many different bacterial species are in the normal flora on the skin?
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>1000 different species on skin
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Of the estimated 10 million – 1 billion bacterial species on earth, how many species are strict human pathogens?
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less than 100
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