Write one important characteristic of virus.

Virus:

1. Virus is considered as the connecting link between living and non-living.
2. These are the microbes and are only visible with an electron microscope.

Characteristic feature:

1. Viruses act as non-living outside the host cell and don't show any activity.
2. As soon as they enter the host cells like plant and animal cells, they start to reproduce and form multiple copies.