Across
- 3. logical explanation
- 4. regions of surfaces, atmosphere and hydrosphere
- 8. a thing or event that evokes a specific functional reaction in an organ or tissue
- 10. population that live in defined areas
- 11. factor whose value depends on the independent variable
- 12. factor that is adjusted by the experimenter
- 13. Rule of nature
Down
- 1. fixed quantity is broken down into parts
- 2. a maintained temperature organism
- 4. study of life
- 5. comparing info collected by counting
- 6. an educated guess
- 7. group of organism of one type that live in the same area
- 9. Trends or data over time