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Describe how "primary succession" starts (6 things)
1. Bare rock
2. Pioneer plants make chemicals that weather rock
3. Makes soil
4. Moss grows
5. Grass grows
6. New life to bare rock
Describe how "secondary succession" starts (3 things)
1. Soil already there
2. It contains seeds
3. Repairs a damaged ecosystem
3 causes of succession
1. Change in climate
2. Actions of animals living there
3. Introduction of a new plant or animal
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