An ecosystem includes which components?

An ecosystem includes which components?

• A. Only the organisms
• B. Only the physical environment
• C. Both living organisms and their physical environment
• D. Only water bodies

Answer: (C)

An ecosystem includes both living organisms and the physical environment, and these two parts interact to drive energy flow and nutrient cycling. The living components—plants, animals, fungi, bacteria, and other organisms—depend on the abiotic factors like air, water, minerals, soil, temperature, light, and climate to survive and reproduce. The environment isn’t just background; it shapes which species can live there and how they interact with one another. Water bodies are only one type of abiotic setting and don’t alone define an ecosystem, since ecosystems can exist in many forms beyond ponds and rivers. So the best choice is that an ecosystem comprises both living organisms and their physical environment.

An ecosystem includes both living organisms and the physical environment, and these two parts interact to drive energy flow and nutrient cycling. The living components—plants, animals, fungi, bacteria, and other organisms—depend on the abiotic factors like air, water, minerals, soil, temperature, light, and climate to survive and reproduce. The environment isn’t just background; it shapes which species can live there and how they interact with one another. Water bodies are only one type of abiotic setting and don’t alone define an ecosystem, since ecosystems can exist in many forms beyond ponds and rivers. So the best choice is that an ecosystem comprises both living organisms and their physical environment.