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Viruses are not unable to complete metabolism, but must rely on living cells and cannot complete metabolism independently. In other words, viruses can be metabolized, and viruses are living things.
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Metabolism is about the whole life process, and the absence of a virus in the cell is just a stage of it. So it can't be said that it's not a living thing!
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Viruses are very special, and they also have metabolism when they are alive.
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Because viruses do not have a cellular structure.
Viruses are non-cellular life forms and belong to non-cellular organisms.
Viruses are composed of a long chain of nucleic acids and protein coats, and viruses do not have their own metabolic organs and no enzyme system. As a result, when the virus leaves the host cell, it becomes a chemical substance that has no life activity and cannot reproduce on its own. Its ability to replicate, transcribe, and translate takes place in the host cell.
Therefore, viral organisms do not belong to the most basic biological system.
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Viruses cannot complete life activities independently without living cells, so viruses are not living systems, but cells are the most basic living systems.
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Except for viruses, organisms are composed of cells, which have complete heredity, birth, growth, maturation (reproduction), aging, and death life activities.
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Viruses are a kind of microorganisms with a very simple structure, it has no cell structure, mainly composed of protein shell and internal genetic material Viruses rely on parasitism in the living cells of other organisms, and most of them can make people and other organisms pathogenic
So the answer is: cells; Independent; Parasitism.
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With the exception of viruses, living things are made up of cells.
The cell theory believes that the cell is the basic unit of the structure and function of the organism, and the organism is composed of cells, and the virus has a simple structure and no cell structure.
A virus is a special organism that does not have a cellular structure. Their structure is very simple and consists of a protein shell and the genetic material inside. Viruses cannot survive on their own, they must live in the cells of other organisms, and once they leave the living cells, they do not show any signs of life activity.
Viruses are so small that most of them can only be seen under an electron microscope.
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With the exception of viruses, living things are made up of cells.
The first article of the cell theory is that all animals and plants develop from cells and are made up of cells and cell products.
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First there are viruses, then there are cells. In the beginning, organisms did not have a nucleus. Those that have a nucleus are higher cells.
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Viruses are a class of microorganisms that do not have a cellular structure and have life characteristics such as genetics and replication. Virus, like all living things, has the ability of heredity, mutation, evolution, is a very small size, extremely simple structure of life form, virus has a high degree of parasitism, completely dependent on the host cell's energy and metabolic system, access to the material and energy required for life activities, leaving the host cell, it is just a large chemical molecule, stop activity, can be made into protein crystallization, for a non-living body, encounter the host cell it will be adsorbed, enter, replicate, assemble, The virus is a primitive life form between living and non-living organisms because it releases progeny viruses and shows typical characteristics of living organisms.
We generally think of viruses as living things.
Simple living beings are also living beings.
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Viruses are indeed living organisms, they just don't have a cellular structure. After all, it has genetic material (and protein shells). [I can't remember it for a long time].
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