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Because viruses need a live host in order to reproduce. Viruses are obligate intracellular parasites. Therefore, they cannot reproduce outside their host cell, and therefore die out. They are diffcult to culture because you need something living in order to culture them in, and see the progress.
What else can I help you with?
What kingdown do most plants and animals belong to when difficult to classify?
lichens, corals, viruses, corals, viruses and carnivourous plants are difficult to classify :)
Why can't you use biochemical testing for viruses?
Biochemical tests are not effective for identifying viruses because viruses lack the necessary biochemical machinery to conduct metabolic processes. Viruses are obligate intracellular parasites that rely on host cells to replicate, making them difficult to culture and study using traditional biochemical methods. Instead, techniques like nucleic acid amplification and serological testing are used to identify and characterize viruses.
Why is it difficult to identify computer viruses?
Because you are an idiot
Explain why viruses are so difficult to combat?
Viruses are so difficult to combat because they are very good at assuming control of cells and multiplying themselves to spread and produce toxins.
Why are viruses difficult to target therapeutically?
Viruses use their host's metabolic enzymes and some viruses mutate very quickly so they can easily become resistant to drugs. Viruses are almost biologically inert until they infect a cell.
Why is A difficult to classify virus as a livingthings?
It is difficult because viruses lack the ability to replicate themselves and theey lacks energy metabolism and other pathways that living things have. Viruses are totally depending on their host. If they want to replicate, they have to infect the host.
Why do plant viruses have a difficult time entering the cells they infected?
Plant viruses have a difficult time entering the cells they infect partly because plant cells are surrounded by tough cell walls that viruses alone cannot break through; however, once inside a plant they can multiply and spread rapidly.
What makes it difficult to detect most viruses using light microscopy?
Most viruses are too small to be seen with a light microscope because they are smaller than the wavelength of visible light. This makes it difficult to detect them using this method.
How do you get along with difficult culture?
You don't. GENIUS
Why are viruses thought to be one of the greatest threats to human dominance of the planet?
Viruses are considered to be a serious threat to humans because they are very difficult to control. Very few things can control viruses except antivirals.
Does windows computer viruses work on mac computers?
No. Mac computers are more secure, and have a very difficult code for the computer. There are only a few mac viruses.
Why are viruses difficult to place in the category of living things?
Viruses are technically not living because they cannot reproduce without a host cell, they cannot move on their own, and they have no organeles.
