A4.2

2. The primary cause of species extinction worldwide.
9. Non-native species that spread and cause harm to the environment.
10. A facility that stores seeds to preserve genetic diversity of plants.
12. Taxonomists who group organisms together based on similarities into fewer larger taxa.
15. The clearing of forests often for agriculture or urban development.
16. The permanent loss of all individuals of a species.
17. The natural or intentional restocking of existing forests and woodlands.
18. The variety of life in the world or in a particular habitat or ecosystem.

1. The long-term shift in temperatures and weather patterns affecting habitats.
3. Harvesting species from the wild at rates faster than they can recover.
4. Taxonomists who divide organisms into more numerous and specific taxa based on differences.
5. The community of organisms and their physical environment interacting as a system.
6. The process of breeding animals in controlled environments to save them from extinction.
7. A species on which other species in an ecosystem largely depend.
8. Conservation of species within their natural habitat.
10. The use of resources in a way that does not deplete them for future generations.
11. Species that are naturally found in only one specific geographic area.
13. Conservation of species outside their natural habitat such as in zoos.
14. Caused by human activity rather than natural processes.