LIFE SCIENCE

Detailed explanation-1: -A virus is a tiny, nonliving particle that enters and then reproduces inside a living cell. Biologists consider viruses to be nonliving because viruses are not cells. Viruses do not use energy to grow or to respond to their surroundings.

Detailed explanation-2: -A virus is a nonliving particle made of proteins, nucleic acids, and (sometimes) lipids. Viruses are considered to be nonliving because they do not have the ability to reproduce on their own. They must be inside a host cell in order to reproduce.

Detailed explanation-3: -They do not possess ribosomes and cannot independently form proteins from molecules of messenger RNA. Because of these limitations, viruses can replicate only within a living host cell. Therefore, viruses are obligate intracellular parasites. According to a stringent definition of life, they are nonliving.

Detailed explanation-4: -Viruses are bundles of genetic material wrapped in a protein coat that can infect living things. Viruses cause damage by hijacking a host cell’s machinery to make copies of themselves, often disrupting normal cell function.