Across
- 4. links all the food chains in an ecosystem together
- 6. the increasing and decreasing of a population
- 7. succession following a disturbance that destroys a community without destroying the soil. Takes a shorter time than primary succession. Examples of things start secondary succession: lava flow, fires, avalanches, humans
- 13. living things
- 14. non-living factors including temperature, water, sunlight, wind, rocks and soil
- 15. limiting factor that depends on population size: such as competition, disease, and parasites
- 17. a group of organisms of the same species populating a given area
- 18. any nonliving component of an environment
- 19. Living and nonliving things in an environment, together with their interactions
Down
- 1. the living things in an ecosystem: animals, human
- 2. First species to populate an area during primary succession.
- 3. Limiting factor that affects all populations in similiar ways, regardless of population size. Such as weather and natural disasters.
- 5. largest number of individuals of a population that a environment can support
- 8. Last community in a succession, like hardwood trees
- 9. Growth pattern in which the individuals in a population reproduce at a constant rate.
- 10. orderly, natural changes, and species replacements that take place in communities of an ecosystem over time
- 11. Succession that occurs on surfaces where no soil exists. Takes a long time.
- 12. and biotic or abiotic factors that restricts the existence, numbers, reproduction, or distribution of organisms
- 16. the power or capacity of an organism to tolerate unfavorable environmental conditions