What is living thing virus?

Viruses are not considered living things because they lack many of the defining characteristics of life. First, viruses cannot reproduce on their own, but must inject their genetic material into a living cell in order to replicate.

Second, viruses do not have their own metabolism, so they cannot consume energy or convert it into usable forms. Third, viruses lack cellular structure and cannot organize themselves into complex structures. Finally, viruses are not capable of responding to their environment or adapting to new conditions. All of these factors lead to the conclusion that viruses are not truly living organisms, but rather complex and infectious particles.