Virus
Virus is harmful source and an entrance doorway to many diseases. It is an infection agent. It can cause very types of diseases on various different backgrounds. It is not particularly visible at first, but is quite dangerous and destroying.
Gram-positive virus
Key features are:
It is single layered.
It has thick layers.
Has teichoic acids.
Very prominent.
Gram-negative virus
Key features are:
It is double layered.
It has thin layers.
Doesn’t have teichoic acids.
It is not that prominent.
I hope this answer helps!😊