Why do we say that the virus has no life and life?
In 1899, Dutch microbiologist Bergerinck discovered the first virus in human history, the tobacco mosaic virus, a virus that specifically infects plants, which can make plant leaves mottled and cause plant death.To date, more than 5,000 viruses have been found in humans, but scientists know that viruses can mutate, so new viruses will appear sooner or later.
From a biological point of view, virus particles with different forms are only one thousandth the size of bacteria, and bacteria are the main group of organisms. Humans can also divide them into beneficial bacteria and harmful bacteria, but viruses rely on parasites.Living organisms, which are harmful in most cases.
The biggest difference between life and virus is that the former can find nourishment by itself, while the latter can only survive by parasitizing and then absorbing the "life force" of the host.
On July 20, 1969, the American astronauts, Armstrong and Aldrin, on the Apollo 11 mission, landed on the surface of the moon in the lunar module. After the astronauts landed on Earth on July 24,He was sent to a quarantine facility and began a three-week quarantine experiment to ensure that astronauts were not infected with a possible moon virus.
When the Cassini-Huygens Saturn probe lifted off in 1997, at the end of its life in 2017, scientists chose to let it fall into Saturn and burn it in the atmosphere, because scientists believe that TitanThere may be life with Enceladus. If Cassini crashed onto these two planets, the possible earth viruses or bacteria on it, and highly polluting nuclear batteries would destroy or even destroy the life systems on the planet.
After Columbus discovered the new continent in 1492, a large number of Europeans arrived in the Americas with European animals and plants and germs. This phenomenon was historically called the "Columbus Exchange". During the exchange period, new diseases brought by Europeans,Caused the deaths of tens of millions of Native Americans.
It is not difficult to see from the example of the Columbus Exchange that human beings, who have evolved from the basic life of the earth, cannot even resist the earth ’s viruses that emerge due to geographical isolation. Therefore, viruses are always an important factor threatening human security.
In the foreseeable future, the war between humans and viruses will continue, and the battlefield will even expand from the earth to other planets, but whether it is future alien viruses or current viruses, they will eventually be destroyed by humans..
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