Oxygen. Living things, even ones with gills, need oxygen. The gills filter the oxygen out of the water. If you had a fishtank that did not have plants or something that mixed oxygen into the water, the fish or eels would suffocate.
man, eels are a government secret, they seek out information through food, the eels who eat are getting the required gov information and the ones who are not eating have already got the important information and are heading back to base to deposit it, then the process restarts itself...
The types of eels are salt water eels, freshwater eels, the swamp eels, rubber eels and the electric eels. It is an elongated fish that lives in the shallow waters.
During the process of photosynthesis, plants release oxygen into the air. This process is sometimes called the oxygen cycle when it refers to the role of plants in the production of oxygen for the planet.
what life process in living things uses oxygen
Their lungs process oxygen.
We do not know as eels do not leave good fossils. Also your English is a bit wrong your question should be worded "How many extinct eels were there". This is because if they are extinct they would have lived in the past not the present.
Adult eels are called eels, babies are elvers
Thunder converts oxygen to ozone. It is a natural process.
a process called Oxidation
electric eels have an electric current that shocks thing Moray eels dont
The process by which nutrients and oxygen are oxidized in cells is cellular respiration. It involves the oxidation of nutrients usually by oxygen.