Which task best aligns with a 4.0 proficiency when evaluating ecosystems?

• A. Identify predator status of organisms
• B. Describe elements of ecosystems
• C. Make predictions about changes to ecosystems
• D. Identify different ecosystems

Answer: (C)

The main idea here is using understanding of ecosystems to forecast what might happen in the future, rather than just listing or describing what exists now. At a high level of proficiency, students apply evidence and reasoning to predict how ecosystem structure and function could change when factors like climate shifts, disturbances, or species introductions occur. This requires analyzing interactions (who eats whom, energy flow, nutrient cycles), considering drivers of change, and justifying a plausible outcome based on data or models. The other tasks focus on identifying roles or describing components, which are foundational but don’t demonstrate the ability to anticipate future conditions. Therefore, predicting changes to ecosystems best shows the ability to apply knowledge to real-world, dynamic scenarios.