That'd be the cell wall and a permanent vacuole. You could also put chloroplasts :)
Answer: B - mosses and lichens that can grow on Rocky surfaces
Explanation: Primary succession usually starts or begins on rock outcrops. It could include bare surfaces, volcanic mountains or an area (water surfaces) with no soil.
In primary succession, pioneer organisms including algae, lichen, mosses and fungi usually are the pioneer species. Other abiotic factors like wind and water play roles of normalizing the habitat.
Mouth, throat, small and large intestine
