Bacteria are considered biotic organisms. This is because they are living entities that exhibit all the characteristics of life, such as growth, reproduction, and response to environmental stimuli. Bacteria are microscopic, single-celled organisms that belong to the domain Bacteria, and they play crucial roles in various ecosystems, including nutrient cycling and the decomposition of organic matter.
Unlike abiotic factors, which are non-living components of an ecosystem (like water, soil, and air), bacteria interact with other living organisms and are essential for many biological processes. For example, some bacteria help in the digestion process in animals, while others are involved in nitrogen fixation in plants.
In summary, because bacteria are living organisms that actively participate in biological interactions, they are classified as biotic.