an organism that cannot grow without oxygen is a(n) anaerobe.
an organism that cannot grow without oxygen is a(n)?
anaerobe
conclusion could be drawn.' 





















































section::::classification.





















































for practical purposes, there are three categories of anaerobe: 





















































bullet::::- obligate anaerobes, which are harmed by the presence of oxygen. two examples of obligate anaerobes are "clostridium botulinum" and the bacteria which live near hydrothermal vents on the deep-sea ocean floor.





















































bullet::::- aerotolerant organisms, which cannot use oxygen for growth, but tolerate its presence.





















































bullet::::- facultative anaerobes, which can grow without oxygen but use oxygen if it is present.





















































section::::energy metabolism.
anaerobic organism
section::::climbs on 8000 meter peaks.





















































1. everest (8848 m, without oxygen south normal route; 5/24/2000)





















































2. lhotse (8516 m, without oxygen normal route; 05/23/2001).





















































3. hidden peak (gasherbrum 1; 8068 m, without oxygen japanese couloir; 08/13/2001)





















































4. gasherbrum 2 (8035 m, without oxygen normal route speed ascent: from 5800 to top in 7 hours 30 minutes, and back to 5800 in 4 hours.; 08/20/2001)





















































5. kangchenjunga (8586 m, classical sw-face route without oxygen; 05/13/2002)





















































6. shisha pangma (main 8046 m and central summits (8012 m) without oxygen; 10/25/2002)





















































7. nanga parbat (8125 m, kinshoffer route, without oxygen; 06/17/2003)
denis urubko