large reptiles and amphibians small birds and mammals mosses and lichens bushes and vines
I gave my students this multiple choice question: When a volcano erupts, new lava is deposited on the slopes of the volcano. After the lava cools and hardens, which types of organisms will most likely be the first to live on the new material?

Only one answer is correct among these 4 choices:
- large reptiles and amphibians
- small birds and mammals
- mosses and lichens
- bushes and vines

Could you tell me which one is correct?

mosses and lichens