An organism is described as anaerobic [from the Greek word "an" (opposite) and "aerobio" (air-lived)] if it does not require oxygen in order to survive. Instead, anaerobic organisms use anaerobic respiration to obtain energy from food. Most anaerobic organisms are microorganisms such as bacteria, yeasts, and internal parasites that live in places where there is never much oxygen, such as in the mud at the bottom of a lake or pond, or in the alimentary canal. Anaerobic organisms release much less of the available energy from their food than do aerobic organisms.
Food, oxygen, shelter, water, and stable conditions in its environment and inside its body. That's mainly it.
The real short answer is that Oxygen is the electron receptor, some species use sulfur. The long answer is oxidative metabolism. Oxygen is to be used in the release of energy from glucose during respiration.
The organism requiring Oxygen for respiration dies.
plants
it is because catfish can survive in low-oxygen levels. Trout survives at higher oxygen levels
Facultative anaerobes can survive without oxygen but will use oxygen if it is present.
Some bacteria and protists called anaerobes can live without oxygen. Three kingdoms have organisms that have anaerobes- kingdom bacteria, kingdom archaea, and kingdom protista
If they CAN survive without oxygen, they are called facultative anaerobes. In other words, these can survive with or without oxygen.If they CAN ONLY survive if there is no oxygen, they are callled obligate anaerobes. In other words, these can only survive if there is no oxygen.
An anaerobe is an organism that thrives in an environment without oxygen. Facultative anaerobes prefer an oxygen-free environment but can survive in the presence of oxygen. Obligate anaerobes are destroyed by oxygen and cannot survive if it is present in their environment.
When a process or organism doesn't require oxygen it is called anaerobic, or sometimes facultatively anaerobic depending on the specific organism. Another term for without oxygen is anoxic.
Mycoplasma is the smallest living organism that was discovered recently that can survive without oxygen.
It is because the warm water has low amount of dissolved oxygen and organism can survive without oxygen.
They can't survive without oxygen but they can survive with an oxygen mask that scuba divers use and with supply of oxygen of course .
These organisms do not need oxygen. They are called anaerobes.
not a single cell in the body can survive without oxygen. without oxygen, the cells won't be able to accomplish their work!
Aerobe
The oxygen in the H2O