Anarobic
An organism that requires oxygen for its survival and metabolism is called an aerobic organism. These organisms rely on oxygen to produce energy through aerobic respiration.
Anaerobic
Anaerobic.
Oxygen can diffuse into a unicellular organism through its cell membrane. The organism utilizes this oxygen for cellular respiration to produce energy.
autotroph means are- any organism capable of self- nourishment by using inorganic materials as a source of nutrients. heterotroph means- an organism requiring organic compounds for its principal source of food. thats it.
The breakdown of food without the use of oxygen is called anaerobic respiration. This process produces energy in the form of ATP without requiring oxygen. However, it generates lactic acid or ethanol as byproducts, depending on the organism carrying out the process.
We call such past organism "extinct".
The lungs take oxygen into the body and the blood transports oxygen throughout the body.
Organisms which need oxygen are called aerobic organisms or aerobes. The oxygen is used in the process of respiration to release energy from food. Organisms which do not use oxygen in respiration are called anaerobic organisms or anaerobes. See: http://en.wikipedia.org/wiki/Aerobic_organism
Respiration.
carnivor
When there is no oxygen available for respiration, cells are unable to undergo aerobic respiration, which is the most efficient way to produce energy. This can lead to a switch to anaerobic respiration, which produces energy less efficiently and can result in the accumulation of lactic acid in mammals. Continued lack of oxygen can ultimately lead to cell death.