Across
- 3. variety of living groups, same neighborhood
- 7. all life forms and surroundings
- 9. same neighborhood, same species
- 10. prefix that means life
- 12. moisture of third planet from sun
- 13. envelop the planet
Down
- 1. never took a breath, part of environment
- 2. surroundings that are alive
- 4. group of living things that breed
- 5. all life and where it is, as we now know
- 6. prefix meaning water
- 7. study interactions among living, nonliving and environment
- 8. portions of the planet that are not liquid or gas
- 11. prefix meaning earth