Why are virsuses considered to be non living

Viruses, for one, can't reproduce on their own. They also don't need nutrients or oxygen. They also have RNA instead of DNA. All of these factors make viruses non-living things, existing only to hijack cells and force them to make copies of the virus and kill the host.

Viruses are kind of horrible.

Anyway, have a great night/day!

-Dylan (AKA Animus)