Virus is neither living nor non living. Gives short note on it? give me the best answer
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viruses are both living and non-living. They have genetic information that evolves through natural selection. They assemble themselves. You can't say either of those things about rocks, clouds, or stars. But they don't have any kind of internal chemical processes for sustaining life, such as growing, reproducing, or adapting to their environment. In this way, they are pretty much as inert as a non-living material. So what are they? Many scientists believe they are a precursor to life, a pre-life form that gives us an idea of how life evolved from self-assembling, self-replicating organic molecules. Others believe that they are more like seeds, with the potential for life, if they find the right environment (a cell host). Still others see them as simple parasites, runaway portions of genes from an earlier host. So this question has not been fully answered, but the pursuit of the answer has led to many fascinating discoveries.
There are two parts that make up every virus. First, there is the genetic material. Just like the cells of any living organism, a virus contains genetic material in the form of nucleic acid. Some viruses contain ribonucleic acid (RNA) while others have deoxyribonucleic acid (DNA) molecules. But unlike living cells, the virus itself does not have the machinery necessary to reproduce this material (more on this soon), only to assemble it. The second basic component of a virus is a protein coat. This coat is made up of identical units of protein that assemble into structures as coded by (constructed by) their genetic material, the RNA or DNA molecule they cover. There is a third component of virus structure that only some viruses have. This structure is a membrane envelope which is made in part from virus-encoded proteins and proteins from the host cell.Viruses are tiny, smaller by far than bacteria. They come in a variety of shapes and sizes, from simple rods to complex spaceship-like structures. In this graphic you can see their relative sizes and a few of the more common shapes.