To reproduce (asexually). Most unicellular organisms only live for mere hours. The best bet for the species to survive and thrive as a whole is for them to reproduce, or replicate.
<span>The measles, mumps, and rubella vaccine is the live, weakened measles virus. The vaccine is made from an attenuated form of the virus and combined with protein or small viruses and bacteria extracted from the virus. Nucleic acid vaccine is a vaccine that is attenuated whole-agent vaccine.</span>
The answer you are looking for is false