Across
- 4. total number of organisms of a species
- 5. a species that originated/developed in an area.
- 7. non-native species causing great harm to an ecosystem.
- 11. all living organisms
- 12. process in which organism populations adapt to change
- 14. long term development of different organisms
- 15. group of living organisms
Down
- 1. variety of life
- 2. predators with no natural predators
- 3. where an organism makes its home
- 6. planned act to maintain the health of a forest
- 8. Things that have an effect on ecosystems/habitats
- 9. process in which a community evolves
- 10. species against one another to gain enough resources, territory, etc.
- 13. the environment/land organisms live on.