Succession Quiz
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5 questions, one answer each
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1. Which is the pioneer species in a primary succession on bare rock?
- A. Lichen
- B. Oak
- C. Fern
- D. Hawthorn
2. What is the main reason soil forms during succession?
- A. Wind deposits sand
- B. Rain adds nitrate
- C. Decomposing organisms add organic matter and the rock weathers
- D. Animals bury seeds
3. Which feature distinguishes primary from secondary succession?
- A. Primary starts with no soil
- B. Primary has no climax
- C. Secondary starts on bare rock
- D. Secondary has no pioneers
4. A climax community is
- A. constantly changing species
- B. made up of pioneer species
- C. unable to support consumers
- D. stable, in dynamic equilibrium with the climate
5. Why are shade-intolerant plants lost as shrubs and trees become established?
- A. Soil nitrate falls
- B. Light reaching the ground decreases
- C. Rainfall decreases
- D. The pH rises