Most biologists today consider viruses to be nonliving because viruses do not have all the characteristics essential for life. Viruses are not cells and do not use their own energy to grow or to respond to their surroundings. Viruses also cannot make food, take in food, or produce wastes. The only way in which viruses are like organisms is that they are able to multiply.
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Viruses are not living because they do not exchange any gasses, they do not require any life-sustaining nutrients, and they do not reproduce on their own. A virus is a small particle that contains a small portion of DNA. It must attach to a living cell and transfer its DNA in order to reproduce. The cell then takes on similar characteristics of the virus.
Active (non-killed) viruses are living organisms.
Most biologists agree that the difference between living and nonliving matter can be explained by looking at?
They cannot live outside of a host.
Biologists determine whether a thing is living or nonliving by a list of characteristics. These characteristics include the ability to reproduce, the ability to eat, the ability to grow and the ability to excrete waste.
Because, they use them for examining for helpful things
Biologists consider dormant virions to be non-living because they must obtain a host to function and replicate themselves. However, active viruses are considered to be living, by most scientists.
None. Viruses are acellular. Many biologists do not consider viruses to be living things in part because they are acellular. Look at any phylogeny (tree of life). Viruses are not on them.
No, viruses are nonliving.
Many, if not most biologists do not consider viruses living. So, they are not on any phylogenetic tree that I know of. They may have a phylogeny that I am unaware of, though.
They are Different because Viruses are nonliving.
Active (non-killed) viruses are living organisms.
Most biologists agree that the difference between living and nonliving matter can be explained by looking at?
Since viruses are nonliving, they have no known predators.
If by non-living you mean an object such as a sheet of metal then no they are not composed of cells. If you are referring to something dead, then yes the DNA is still intact at least for a while anyway they do deteriorate in time.
If you mean what are viruses then they are nonliving strands Rna surrounded by a protein coat
The type of cells that viruses live in are host cells. Viruses need host cells in order to reproduce or multiply.
None. They are nonliving organisms.