Across
- 6. fishing too much
- 8. the habitat of life forms
- 10. a drastic change in weather and temperature
- 11. the overall state of life in an ecosystem
- 13. a harmful species that is not native to an ecosystem
- 14. the things that limit a population from increasing
- 15. when humans interfere with an ecosystem in a harmful and destructive manners
Down
- 1. the overuse of recources
- 2. the reintroduction of life
- 3. to many organisms in an ecosystem
- 4. the organisms habitats being destroyed
- 5. the number of animals allowed in an ecosystem
- 7. tearing down trees
- 9. the different types of organisms in an ecosystem
- 12. a single life form in an ecosystem