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aerobe |
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aerobe [′e‚rōb] (biology) An organism that requires air or free oxygen to maintain its life processes. How to thank TFD for its existence? Tell a friend about us, add a link to this page, add the site to iGoogle, or visit webmaster's page for free fun content. |
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(7) Alsoub and Chacko found that the most
frequently isolated aerobic organisms were Bacteroides spp,
streptococci, and staphylococci. Without aerobic organisms around, atmospheric oxygen
would surely have built up earlier than many believe, he says.
While most scientists believe aerobic organisms did not evolve until
oxygen levels increased dramatically at least a billion years later,
Towe suggests they emerged during the Archean, surviving on the small
amounts of oxygen available at the time. |
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