Which of these is considered non-living by most scientists? A. Bacteria B. Viruses

To determine which of these options is considered non-living by most scientists, we need to analyze the characteristics of bacteria and viruses.

1. Bacteria: Bacteria are single-celled organisms that exhibit all the characteristics of life. They can reproduce independently, respond to stimuli, and carry out metabolic processes.

2. Viruses: Viruses, on the other hand, differ significantly from living organisms. They cannot reproduce on their own, do not have a cellular structure, and rely on a host cell to replicate. Because of these characteristics, viruses are often classified as non-living entities.

Final Answer

B. Viruses are considered non-living by most scientists.