Anaerobic bacteria don't need oxygen to grow.
Every animal need this gas for respiration. Oxygen helps to destroy the harmful bacteria in the body. It also helps in decaying.
* Blood: blood must be kept at a certain pH to ensure the haemoglobin can bond to oxygen. Otherwise, the formation of carbonic acid by dissolved carbon dioxide can cause anaemia and oxygen deprivation. * Plants: many plants require a certain soil pH, otherwise they are unable to grow. * Bacteria: most bacteria have a certain range of pH which they grow best in. Outside this range, growth can be stunted or even prevented entirely. * Enzymes: Like bacteria, some enzymes work best in certain pH ranges, but will almost cease entirely when not.
oxygen helps us to breath us
Some bacteria and protists called anaerobes can live without oxygen. Three kingdoms have organisms that have anaerobes- kingdom bacteria, kingdom archaea, and kingdom protista
The condition that helps aerobic bacteria to grow and thrive is oxygen. In stark contract an anaerobic organism does not require oxygen to grow and thrive.
Anaerobic bacteria don't need oxygen to grow.
Aerobic bacteria uses oxygen for cellular respiration and anaerobic bacteria doesn't require oxygen to survive. ˇ_ˇ 
Obligate Aerobes
The factor is Oxygen.
Bacteric grow faster in places where there is enough moisture, food and oxygen...our mouth!
It depends--there are both aerobic (oxygen-dependent or oxygen-tolerating) and anaerobic (oxygen-intolerant) bacteria. Anaerobic bacteria often cannot live in the presence of oxygen, while increasing oxygen levels for aerobic bacteria can often stimulate population growth.
Anaerobic bacteria are bacteria that do not live or grow in the presence of oxygen. In humans, these bacteria are most commonly found in the gastrointestinal tract.
Not all bacteria do. Some can not grow in the presence of oxygen. Those that do (obligate aerobes and facultative anaerobes) grow quicker in oxygen since it facilitiates their energy cycle and ideal environment.
Every animal need this gas for respiration. Oxygen helps to destroy the harmful bacteria in the body. It also helps in decaying.
H2O, hydrogen and oxygen are what is in water that helps plants grow. Without these nutrients a plant will die.
Bacteria are classified as aerobic (needing oxygen) and anaerobic (able to grow in oxygen poor environments). Viruses are neither.