Across
- 2. Different environmental conditions that happen along the boundary of an ecosystem.
- 3. Species that have rapidly decreasing numbers of individuals.
- 4. Non-native species of an area.
- 5. Seperation of wilderness areas.
- 8. When the last member of a species dies.
- 9. variety of species that live in an area.
- 10. Layers of the atmosphere that helps protects living things from dangerous doses of ultra-violet rays.
- 11. biology field of biology that strives to protect biodiversity of plants and animals.
- 13. rain,snow,sleet,and fog with low pH below 7 causes the deterioration of forests,lakes, and statues.
Down
- 1. Damage of habitat by water, air, land population.
- 5. natural strips of land that allow the migration of animals to one area to another.
- 6. A species in which the number of individuals falls so low that extinction is possible.
- 7. programs programs that release animals into a new land with hopes of reproductive populations.
- 12. philosophy that promotes people using resources in wilderness areas in ways that will not damage the ecosystem.
- 14. When members of a species are held by people in zoos or conservation faculties.