Question

why virus acts as a connecting link between living and non living

Answer 1

Answer

Virus is very small microorganisms, which grow only on living cell, outside the living cell, they are inactive as non-living. So it is considered as connecting link. Viruses are microorganisms that lack a active metabolism system. So they have to use the system of other organisms in order to lead their life.

Answer 2

Here's the answer you are looking for

Viruses are microorganisms that lack a active metabolism system.

So they have to use the system of other organisms in order to lead their life.

Since they lack the metabolism system, they are dead or non living outside the living body.

But once they enter a living body containing the metabolism system they act as living.

Hence they are considered as a connecting link between living and non living