There was no oxygen at the origin of life, so oxygen is not a chronic poisonous gas

Oxygen has an inhibitory effect on some microorganisms, and aerobic respiration is more efficient.

Currently, all living things on Earth need oxygen to survive. Every place on Earth is full of oxygen: humans need to breathe oxygen to survive, plants absorb oxygen from dioxide ponds through photosynthesis, and so on.

And at present, scientists are trying to find a planet suitable for human habitation, and the presence of oxygen is also one of the important factors. From ancient times to the present, many scientists have made varying degrees of contributions to the research and discovery of oxygen, among which Xu Shou of the Qing Dynasty in China is the name of the Chinese name for oxygen. Because oxygen can be regarded as "nourishing qi", it can be seen that oxygen has been regarded as one of the necessary conditions for human survival for a long time.

According to scientists' discoveries, there were organisms on Earth that did not rely on oxygen to survive in the beginning. For example, the earliest organism that can be found to live without oxygen is "Cercospora salmona", and it is precisely because of its existence that we realize that it is possible that at the time of biological origin, organisms on Earth did not need oxygen to survive. Later, with the development of time and the evolution of various organisms, these species began to rely on oxygen to survive in order to survive.

These changes have undoubtedly evolved over hundreds of millions of years or more. <

According to archaeologyIt has been found that there have been two extinctions on Earth, both of which were related to the increase in oxygen. Perhaps because of this event, many organisms on Earth that do not need oxygen to survive have become extinct because of the inhalation of large amounts of oxygen. And those organisms that survive by constantly adapting to the presence of oxygen become dependent on oxygen.

Although we all need oxygen to survive, taking too much oxygen can also lead to various problems in our bodies, such as fainting, organ failure, and even death. The existence of anything has two sides, and the extremes of things must be opposed.

This is also a manifestation of China's advocacy of "moderation" since ancient times. <>

The presence of oxygen does cause mutations in normal human cells. Although oxygen is present in very small amounts in the air, oxygen radicals can cause normal cell mutations, such as cancer, by robbing them of electrons. This process is called cellular oxidation, so we can infer that oxygen may really be a poisonous gas around us.

We survive by relying on this gas, but at the same time we do damage to ourselves. This poison gas is also a chronic poison that makes us grow old. In general, the advantages of the presence of oxygen outweigh the disadvantages, after all, people die without oxygen.

Human life is inseparable from oxygen, without oxygen, we can't breathe, and life will be lost, but many people may not have thought about a question: where does the oxygen on the earth come from?

We can trace our earliest dates back to ancient times, when there was no oxygen on the earth, almost all of it was carbon dioxide. And living things also breathe carbon dioxide, and that's it, these creatures are also living in good health and have been living on the earth.

At this time, there was a creature on the earth that completely changed the earth, and it was cyanobacteria. Cyanobacteria are microorganisms that can produce oxygen, which multiply in large quantities on the earth and produce a large amount of oxygen, so the oxygen concentration of the earth gradually rises, and these organisms that originally lived on carbon dioxide have ushered in a catastrophe, most of the organisms are extinct, and only a few organisms have hid in some oxygen-free environments on the earth to survive.

As the oxygen content of the earth increased, aerobic organisms began to be born, including humans. Human survival is inseparable from oxygen, but at the same time, human beings are also getting old because of oxygen, and if we are exposed to a large amount of air, it will damage the free radicals, so that people's free radicals will become more and more rough, and even wrinkles. The main reason for this is also because the oxidizing power of oxygen kills free radicals.

Therefore, the reason why people are getting older and older is also because of oxygen.

So, why is oxygen on Earth? Scientists also don't understand that these oxygen-producing cyanobacteria seem to be artificially made, and if the earth is still the original carbon dioxide, intelligent life will also be born, and if carbon dioxide is exhaled, maybe the survivability will be stronger. In fact, human beings are bound by oxygen, no matter how far they go, human beings need oxygen, and they can't live without oxygen.

Some scientists speculate that the blue-green algae may have been brought to Earth by aliens. In ancient times, the earth was just born, the birth of anaerobic organisms, at this time the earth was discovered by the extraterrestrial advanced civilization, at that time the earth's creatures are anaerobic organisms, and aliens may also be aerobic organisms, they are ready to change the earth's atmosphere, into the same atmospheric environment as their own planet, so they scattered a large number of this cyanobacteria on the earth, cyanobacteria through a large number of reproduction, all over the world, at this time a large amount of dioxane carbon was also produced, the earth's atmosphere is finally completely dominated by oxygen.

Why do aliens do this? It is possible that they want to use the earth as a colonization planet, or maybe the birth of human beings is also related to these aliens, but we can't find evidence to prove this, and we can only find this truth when science and technology develop and progress in the future.

We all know that human life is inseparable from oxygen, without which human beings will not be able to breathe and life will not be able to continue. So, how does oxygen come from Earth? This goes back to ancient times, when the Earth's oxygen concentration was almost zero and carbon dioxide was widely used.

Yes. If the oxygen concentration is too high, humans will also die from oxygen poisoning.

I think it is possible to die from oxygen, which is necessary for the human body, but when the oxygen content is too high, the human body will be harmful to health after inhalation, and even die because of it.

Yes. Oxygen is what human beings depend on for survival, and if there is no oxygen one day, human beings will also perish.

Outside of the universe, is there a civilization that is the same as human beings? This is probably a question that countless scientists are trying to find answers to. Obviously, with the current science and technology of human beings, the answer to this question cannot be found, human science and technology is very shallow, and even the standard for human beings to find aliens is to start with oxygen.

Does life really have to rely on oxygen in order to achieve the reproduction of its own civilization and the growth of life? Obviously, this is a stereotype of the human solid, and life does not necessarily need oxygen to survive. Life that survives on oxygen is not the only point of view, and if you want to use this erroneous concept to find extraterrestrial civilizations, you will definitely gain very little.

Scientists have conducted a large investigation and extension of the view that life needs oxygen, and finally came up with a new view, which makes human beings feel a little novel. It may even subvert the existing human cognition, what is the conclusion?

In the process of exploring microorganisms, scientists have found that not all microorganisms exist, they all rely on oxygen, and even some microorganisms rely on hydrogen to survive. If there are microorganisms on the earth that can survive with hydrogen, then does this prove that in fact, aliens outside the universe can also start with hydrogen and look for it?

Water is the source of life, but if water is decomposed, hydrogen and oxygen can be obtained, and if oxygen can be used for human survival, then what is the role of hydrogen? Is it true that hydrogen cannot exist for life and be used as an energy source? Obviously, if microorganisms can survive 100% with hydrogen, then the uniqueness of using oxygen to breathe is wrong, and scientists can also use hydrogen to extraterrestrials.

Human beings on the earth can indeed survive by breathing oxygen, but not all living things must rely on oxygen, and the microorganisms discovered by scientists rely on hydrogen to survive, which is a good proof that in fact, the life forms that exist in the universe and space may not be so simple!

Life really has to depend on oxygen, and there is no creature that does not survive on oxygen, and a creature that dies without oxygen.

There are many microorganisms that do not depend on oxygen to survive, but still rely on hydrogen to survive, and life does not have to rely on oxygen to survive.