Across
- 5. fungus study
- 6. trees that lose their leaves in winter
- 7. plant male reproductive organ
- 10. trees that keep their leaves all year
- 11. gaps between plant cells for gas transfer
- 14. plant water evaporation
- 16. green calyx part
- 18. one organism benefits by harming another
- 20. one benefits but the other is not affected
Down
- 1. plant that has spores instead of seeds
- 2. relationship between species where at least one organism benefits
- 3. simple sugar
- 4. plant fertilization
- 5. relationship where both organisms benefit
- 8. plant that uses fruit or nuts to hold its seeds
- 9. ripened plant ovary
- 12. movement caused by external stimulus
- 13. plant study
- 15. plant that leaves its seeds open to the air
- 17. protects flower buds
- 19. plant female reproductive organ