field mouse, grass, hawk snake snake, field mouse, hawk, grass grass, field mouse, snake, hawk snake, grass, field mouse, hawk
I gave my students this multiple choice question: In an ecosystem, which list of organisms is in the correct order from producer to top-level consumer?

Only one answer is correct among these 4 choices:
- field mouse, grass, hawk snake
- snake, field mouse, hawk, grass
- grass, field mouse, snake, hawk
- snake, grass, field mouse, hawk

Could you tell me which one is correct?

grass, field mouse, snake, hawk