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Basically because it does not have the things required to BE a cell, which is considered to be an organism. A virus is not considered an organism. The virus has a core of RNA or DNA which is surrounded by a protein coat. Unlike cells that can either go through mitosis or binary fission, viruses cannot replicate itself unless it is in a host cell.
What else can I help you with?
Are viruses old prehistoric cells or are they highly evolved cells?
viruses dont have cells
Are viruses general or specific to the cells that they infect?
viruses are specific to the cells they infect called host cells
Is genetic material found in both cells and viruses?
Yes, both viruses and cells have DNA.
Are viruses made up of tissues?
No, tissues are made up of cells and viruses are not even cells.
Are viruses smaller than eukaryotic cells?
Yes, viruses are smaller than eukaryotic cells.
Why do you classify viruses as obligatory intracellular parasite?
Viruses need living cells to produce more viruses. They are obliged to use living cells.
When body cells are attacked by viruses they produce what?
INTERFERON is a substance produced by body cells when they are attacked by viruses.
Are viruses made out of a cell or cells?
well viruses are caused by bacteria and bacteria are cells. so yes
Are viruses made of a cell or cells?
well viruses are caused by bacteria and bacteria are cells. so yes
Does cells have viruses?
cells are not made with viruses unless the virus gets into the cell itself. The viruses get into the cell and the virus will spread killing off whatever it can ;)
Viruses are single celled organisms?
No. Viruses are not cells. They invade cells to get the materials to copy their DNA. Many people do not consider viruses to be truly alive.
Which best describes how common cold spread in the human body?
viruses replicate inside respiratory cells.
