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Viruses are not an organism at all. They are not alive. They are nonliving. They are like cockle burrs that "grab" hold of your clothing or a dogs coat. They are hijackers. Once they get attached to the cell of a living cell, they can take it over and "make" the living cell produce virus particles instead of cell parts. These parts can assemble into more viruses and then they breakout of the cell (killing it) and begin the process again. They can not make more viruses on their own.
They are very small and can be considered microscopic. We have to use an electron microscope to see them as they are that small.
What else can I help you with?
What characteristic applies to all 3 domains and viruses?
All three domains of life—Bacteria, Archaea, and Eukarya—share the characteristic of being composed of cells, which are the basic units of life. Additionally, viruses, although not classified as living organisms, possess genetic material (DNA or RNA) and can evolve, similar to cellular organisms. This shared feature of genetic material underscores the fundamental biological processes of replication and evolution across all domains and viruses.
You know viruses are not alive because?
viruses do not have the ability to replicate on their own or carry out metabolic functions like living organisms do. They require a host cell to reproduce and do not possess the machinery needed to do so independently.
Viruses have some of the properties of living organisms which is a characteristic of all organisms but NOT of viruses?
One of the characteristics is they contain genetic material (DNA), which is a characteristic that all living things must have in order to be considered living. And also when inside a host, they are able to reproduce, which all living things must be able to do.
What characteristic applies to all three domains and viruses?
They have genetic material. (Novanet)
Which is a characteristic of all life?
One single characteristic, if you have to pick one, is that it multiplies, or reproduces.
Can a virus carry out all the life processes?
No, viruses cannot carry out all life processes on their own as they lack cellular machinery for functions like metabolism and reproduction. Viruses require a host cell to replicate and express their genetic material.
Why aren't viruses the most fundamental units of life?
Viruses lack cellular structure and cannot replicate on their own. They rely on infecting host cells to reproduce, making them dependent on other living organisms for their survival. Additionally, viruses do not possess the machinery necessary for metabolism and energy production, key characteristics of living organisms.
Why are dugongs Phylum Cordata?
Dugongs are Phylum Chordata because they possess a notochord at some point in their development, which is a defining characteristic of the phylum. This notochord provides structural support for the body and is present in all chordates at some stage of their life cycle.
Should viruses be considered a form of life?
Not technically. The do not fulfil all the criteria that we consider to be indicitive of life.
Are viruses living cells?
No, they are not alive at all.
Are viruses Prokaryotic or Eukaryotic?
Neither, viruses are unique to themselves and don't belong to any classification of life. Viruses are not considered living things because they do not perform all the functions of life therefore they are considered organic particles.
Can anything not made of cells be alive?
That depends on your definition of life. Viruses are not cellular, and some people consider them to be alive. Viruses can replicate themselves, which is a characteristic of living things, but in general can only live inside another cell, so they don't live independently.
