Answer: Living things have cells. Viruses do not have cells. ...
Living things reproduce. In general, cells reproduce by making a copy of their DNA. ...
Living things use energy. ...
Living things respond to their environment.
Viruses are not alive – they are inanimate complex organic matter. They lack any form of energy, carbon metabolism, and cannot replicate or evolve. Viruses are reproduced and evolve only within cells. ... The viral genome is 1,200,000 nucleotides in length and codes for over 900 proteins.
