What is an ecosystem?

What is an ecosystem?

• A. The weather
• B. A rock formation
• C. A community of living things and their environment interacting
• D. A climate zone

Answer: (C)

An ecosystem is a community of living things and their environment interacting as a system. It includes plants, animals, microorganisms, and the nonliving parts like air, water, soil, and climate, all influencing one another through energy flow and nutrient cycles. For example, producers capture sunlight to make food, consumers eat those plants or other organisms, decomposers recycle waste back into the soil, and these interactions support life in that place. Weather describes short-term conditions, a rock formation is a nonliving feature, and a climate zone is a broad regional pattern—none of these alone capture the idea of living things interacting with their surroundings as a connected system. So the best description is a community of living things and their environment interacting.

An ecosystem is a community of living things and their environment interacting as a system. It includes plants, animals, microorganisms, and the nonliving parts like air, water, soil, and climate, all influencing one another through energy flow and nutrient cycles. For example, producers capture sunlight to make food, consumers eat those plants or other organisms, decomposers recycle waste back into the soil, and these interactions support life in that place. Weather describes short-term conditions, a rock formation is a nonliving feature, and a climate zone is a broad regional pattern—none of these alone capture the idea of living things interacting with their surroundings as a connected system. So the best description is a community of living things and their environment interacting.