Across
- 6. species, A species that could become endangered in the near future.
- 7. Species, The first species to populate an area during succession.
- 8. The study of where organisms live and how they got there.
- 11. total number of different species on Earth including those on land, in the water, and in the air.
- 12. The disappearance of all members of a species on Earth.
- 13. Breeding, The mating of animals in zoos or wildlife preserves
- 16. Fragmentation, The breaking of a habitat into smaller, isolated pieces.
- 17. Anything in the environment that you need to live, such as water, nutrients, light, food, or space.
- 18. Species, Species that are carried to a new location by new people.
Down
- 1. Succession, The series of changes that occur in an area where the ecosystem has been disturbed, but where soil and organisms still exist.
- 2. species, A species that influences the survival of many other species in an ecosystem.
- 3. effect, The trapping of heat near a planets surface by certain gases in the planets atmosphere.
- 4. Destruction, The loss of a natural habitat.
- 5. Succession, The series of changes that occur in an area where no soil or organisms exist.
- 9. Illegal killing or removal of wildlife from their habitats
- 10. The movement of organisms from one place to another.
- 13. drift, The hypothesis that the continents slowly move across Earth's surface.
- 14. species, A species in danger of becoming extinct in the near future.
- 15. The series of predictable changes that occur in a community over time.
