Which option describes a feedback loop and gives examples of negative and positive feedback in ecosystems?

Which option describes a feedback loop and gives examples of negative and positive feedback in ecosystems?

• A. An event where organisms move in a straight line.
• B. A cycle of energy transfer with complete conservation.
• C. Predator-prey regulation stabilizes populations.
• D. A process where outputs feed back as inputs; negative feedback stabilizes populations; positive feedback amplifies changes.

Answer: (D)