trees shrubs lichens and mosses weeds and crabgrass
I gave my students this multiple choice question: A rural area was cleared down to bare rock for constructing a road, but the road was never built. The area began to regrow. Which organisms most likely reappeared first?

Only one answer is correct among these 4 choices:
- trees
- shrubs
- lichens and mosses
- weeds and crabgrass

Could you tell me which one is correct?

lichens and mosses