parasitism mutualism competition commensalism
I gave my students this multiple choice question: When a large oak tree is cut down in a forest, it leaves a gap in the forest canopy which allows smaller trees to quickly grow in the available sunlight. Which interaction is best represented among the smaller trees?

Only one answer is correct among these 4 choices:
- parasitism
- mutualism
- competition
- commensalism

Could you tell me which one is correct?

competition