There are more prey than predators. The food web is more stable and lasting. Organisms often must compete for food. Plant populations are the primary producers.
I gave my students this multiple choice question: In which way are rainforests and coral reefs different from ecosystems with few species?

Only one answer is correct among these 4 choices:
- There are more prey than predators.
- The food web is more stable and lasting.
- Organisms often must compete for food.
- Plant populations are the primary producers.

Could you tell me which one is correct?

The food web is more stable and lasting.