There are two groups of organisms that are capable of thriving in an environment without oxygen.
Facultative Anaerobes
Anaerobes
Facultative means with or without.
microbes that live in presence of oxygen are called as aerobic microbes and which live in absence of oxygen are called as unaerobic microbes
Facultative anaerobes
aerobic = with anaerobic = without
facultative anaerobes
Anaerobe.
Facultative anaerobic bacteria.
Yes indeed. Ozone is a known purifying agent for water. It increases oxygen levels in water. Many harmful microbes, bacteria and viruses cannot survive in oxygen rich envirnments.
Bacteria that can ONLY grow in the absence of oxygen are called obligate anaerobes.
Oxygen is not known as helium. But a mixture of oxygen and helium is used in the oxygen cylinder for underwater diving.
Chroococcidiopsis is one of the most primitive cyanobacteria, blue-green algae, known. It is a photosynthetic, coccoidal bacteria and is known for its ability to survive harsh environmental conditions, including both high and low temperatures, ionizing radiation, and high salinity.
Facultative anaerobic bacteria.
Yes indeed. Ozone is a known purifying agent for water. It increases oxygen levels in water. Many harmful microbes, bacteria and viruses cannot survive in oxygen rich envirnments.
abligate anaerobes y
Unicellular protists, also known as micro-organisms, need oxygen to survive. They obtain oxygen by diffusing it across the cell membrane into the cell.
respiratory burst
Yeast species either require oxygen for aerobic cellular respiration (obligate aerobes) or are anaerobic, but also have aerobic methods of energy production (facultative anaerobes). Unlike bacteria, there are no known yeast species that grow only anaerobically (obligate anaerobes). Yeasts grow best in a neutral or slightly acidic pH environment. (Wikipedia:Yeast)
Biota that live in extreme environments are known as extremophiles. They have evolved to like these conditions. Black Smokers in the ocean floor, are surrounded by such organisms - in that case, of ones that can survive without light and oxygen.
oxygen is required in a process known as aerobic respiration. This is where an organism breaks down sugar step by step using oxygen to release energy which is used elsewhere in the organism.
Symbiont
Animals can survive by their gills and they have oxygen in their gills. Humans have been able to survive in the ocean only because of aqua lung and also submersibles also known as submarine's
BOD is otherwise known as biochemical oxygen demand. It is important to water quality because it decreases the amount of oxygen to kill bacteria.
most bacteria thrive in heat, multiply faster. But at very high temperature, they stop growing. Some bacteria have the ability to survive at temp of more than 100 degrees Celsius. They are known as extremophiles