ANATOMY

Detailed explanation-1: -Viruses are non-cellular, microscopic infectious agents that can only replicate inside a host cell. From a biological perspective, viruses cannot be classified either a living organism or non-living. A virus can be an infectious agent which only replicates within a host organism.

Detailed explanation-2: -A virus is an infectious agent that can only replicate within a host organism. Viruses can infect a variety of living organisms, including bacteria, plants, and animals.

Detailed explanation-3: -virus. Viruses are microscopic biological agents that invade living hosts and infect their bodies by reproducing within their cell tissue.

Detailed explanation-4: -Viruses are considered as non-cellular organisms as they don’t perform cellular functions like metabolism, growth when present outside the body. As soon as they infect the host cell they start to reproduce.

Detailed explanation-5: -All DNA viruses replicate within the nucleus except poxviruses, asfarviruses, and phycodnaviruses. Few RNA viruses, including bornaviruses, orthomyxoviruses, and retroviruses, replicate in the nucleus.