Many forested regions of today were once barren rock areas. Mot likely this change involved the following sequence of stages:
Correct answer: A. Lichens-mosses-annual herbs-wood shrubs
- A. Lichens-mosses-annual herbs-wood shrubs
- B. Annual herb-weedy shrubs-lichens-mosses
- C. Woody shrubs-mosses-lichens-annual herbs
- D. Mosses-annual herbs-woody shrubs-lichens
Explanation
Primary succession on bare rock generally proceeds from pioneer lichens to mosses, then herbs and finally woody shrubs. These stages reflect gradual soil formation and increasing habitat complexity.
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