Final answer:
The ecosystem is the correct answer as it includes both living (biotic) and non-living (abiotic) components of an environment.
Step-by-step explanation:
Among the options provided, B) Ecosystem is the level of biological organization that includes both living and non-living components. An ecosystem consists of all the living things (biotic factors), such as plants, animals, and microorganisms, in a given area interacting with all of the non-living (abiotic) parts of the environment, such as water, sunlight, soil, and temperature. This includes the interactions between the populations and the flow of energy and matter within the environment.