Across
- 2. Interaction between individuals of the same species
- 3. Interaction between individuals of different species
- 5. Community development where no soil previously existed
- 6. Graph showing survival of individuals over time
- 7. Both organisms benefit
- 8. Relationship where different species live together
- 12. One organism benefits and the other is unaffected
- 13. When two organisms require the same limited resource
Down
- 1. First organisms to colonize a new or disturbed area
- 4. Low early death rate with most individuals living to old age
- 6. Community regrowth where soil remains after disturbance
- 9. Event that disrupts a community such as natural disasters or human activity
- 10. One organism benefits while the other is harmed
- 11. Series of changes in species composition in an ecosystem over time