Across
- 3. The act of making offspring
- 6. The gene that will only show up if ther e is two
- 9. Pollution that will become decomposed
- 11. The presence of a harmful substance in nature
- 15. The primary Gene
- 16. When only one creature benefits from a different creature
Down
- 1. The ecological interaction between two creatures
- 2. The breeding process that humans use to get a desired trait
- 4. When a species no longer exists
- 5. Animals that live on the seafloor
- 7. A social movement to protect the enviro nment
- 8. The study of living things
- 10. A diverse ecosystem
- 12. It is caused by greenhouse gases
- 13. Non-living chemicals and physical parts of nature that effect the environment
- 14. The studying of all parts of the ocean