The correct option is
C Both living organisms and non-living objects.
The correct option is C.
Explanation for the correct option:
- The description of living things and the physical characteristics of the habitat in which they reside are referred to as an ecosystem's structure.
- Abiotic (all non-living components, such as minerals, the environment, soil, water, and sunshine) and biotic (all living components) components make up an ecosystem, respectively.
- The ecosystem's energy flow and nutrient cycle are each accounted for by one or more of these elements.
Final answer: An ecosystem includes both living organisms and non-living objects.