A virus is square while a cell is square

virus is a non-living infectious agent that can only replicate inside a host cell, while a cell is a basic structural and functional unit of all living organisms.<br /><br />The key differences between a virus and a cell are:<br /><br />1. Living status:<br /> - Virus: Non-living, as it cannot carry out metabolic processes or reproduce on its own.<br /> - Cell: Living, as it can perform metabolic processes and reproduce independently.<br /><br />2. Structure:<br /> - Virus: Consists of genetic material (DNA or RNA) enclosed in a protein coat, without any cellular organelles.<br /> - Cell: Contains various cellular organelles, such as nucleus, mitochondria, endoplasmic reticulum, etc.<br /><br />3. Reproduction:<br /> - Virus: Can only replicate inside a host cell, using the host's cellular machinery.<br /> - Cell: Can reproduce independently through cell division.<br /><br />4. Size:<br /> - Virus: Much smaller than a cell, typically ranging from 20 to 300 nanometers.<br /> - Cell: Much larger than a virus, typically ranging from 1 to 100 micrometers.<br /><br />In summary, a virus is a non-living infectious agent that requires a host cell to replicate, while a cell is a living structural and functional unit of all living organisms.