Give scientific reasons: Viruses are considered a connecting link between living and non-living organisms.

(N/A) Viruses are considered a connecting link between living and non-living organisms because they exhibit characteristics of both.
$1$. Non-living characteristics: Viruses are acellular and exist as inert crystalline structures when outside a host cell.
$2$. Living characteristics: Once they infect a host cell,they take over the host's machinery to replicate themselves,showing metabolic activity and reproduction.
Since they behave as non-living matter in a free state but exhibit life processes like replication within a host,they are defined as the connecting link between living and non-living entities.