Across
- 4. Changes of species
- 6. Chemical processes in living things
- 8. Cells and their structure
- 11. Uses life to improve human lives
- 12. Fungi
- 13. Organism's behavior
Down
- 1. Life in other eras
- 2. Viruses
- 3. Structure of living things
- 5. How living things function
- 7. Plants
- 9. Ecosystems and interactions
- 10. Animals