Across
- 3. corridors natural strips that allow the migration of
- 4. blocks ultraviolet radiation
- 7. variety of life in an area
- 8. biology the study methods to protect biodiversity
- 10. an organism that is held by people
- 11. from one area to another.
- 12. species not native to a particular area
Down
- 1. species decline of a species rapidly.
- 2. once lived.
- 3. degradation damage to a habitat by pollution
- 5. precipitation (ex. rain, snow, sleet, fog) with low pH values
- 6. programs release organisms into an area were their
- 9. disappearance of a species
- 12. effect different conditions around an ecosystem