Across
- 2. Specific environment
- 3. Multiple species that live in the same area
- 4. All living things and their environment
- 8. factors Have never been living
- 9. tools used to show populations
- 11. population per unit area
- 13. Proportion of males and females
- 14. number of organisms present in a population
Down
- 1. All parts of Earth that host life
- 3. how organisms are arranged in an area
- 5. Study of how organisms interact
- 6. A Group that interbreeds and make fertile offspring
- 7. All populations in an area
- 8. number of organisms per age group
- 10. Anything an organism needs
- 12. factors Have always been living