Final answer:
The sequence in question represents levels of ecological organization, ascending from an organism to a population, then to a community, and the next level is an Ecosystem, which encompasses both the living community and the nonliving environment. Therefore correct option is C
Step-by-step explanation:
The sequence Organism -> Population -> Community represents increasing levels of ecological organization. The item that comes next in this sequence is the Ecosystem. An ecosystem includes all the populations in a given area (the community) as well as the nonliving (abiotic) environment with which they interact. This is represented by option C: Ecosystem.
Therefore, we can see that the hierarchy of biological organization moves from individual organisms to their collective populations, then to the broader community of different species, and finally to the ecosystems they form part of, which extends to include abiotic factors like climate and geography. The sequence from most inclusive to least complex could then be described as Biosphere -> Ecosystem -> Community -> Population -> Organism, with the biosphere being the entire life-supporting area of Earth.