Across
- 2. place where organisms live
- 6. all of the different ecosystems on Earth combined
- 8. different populations that interact with one another
- 9. area of the leaf where photosynthesis takes place
- 10. process where sugars are broken down and energy is released
- 11. all of the living and non-living things in an environment and their interactions
- 12. group of individuals of the same species
Down
- 1. green pigment in plant cells
- 3. single celled organism
- 4. possible explanation or answer to the question you are investigating
- 5. the process by which plants make their own food
- 7. study of interactions between livings things and with their environments