Across
- 7. the science of heredity
- 10. a form of life composed of cells
- 11. element required for breathing
- 12. aquatic eukaryotic organisms
- 15. a plastid containing chlorophyll
- 16. a plants origin
- 17. natural external factors surrounding an o
- 20. a branch of biology
- 22. a class of individuals having some common
- 23. a microscopic structure containing a mem
- 24. a system, or group of interconnected elements
Down
- 1. the process of converting CO2 and water
- 2. a multicellular organism that produces
- 3. biologicl diversity among/within plant species
- 4. plant science
- 5. organisms that live by decomposing and
- 6. element humans exhale
- 8. the green coloring matter of leaves and
- 9. method of studying nature
- 13. change in genes from generation to generation
- 14. one-celled organisms
- 18. oxygen producers
- 19. science of embryos
- 21. reproductive body of an oraganism
- 25. the ascending axis of a plant