Across
- 2. the act of taking in oxygen
- 9. is the energy releasing process in plants
- 12. process plants use to make food
- 13. state of existing
- 14. is something that is related to one or more cells
- 16. has to do with veins, vessels, or tubes
Down
- 1. colorless, odorless gas
- 3. things that are available and ready to be used
- 4. unlike others or only one of its kind
- 5. let it go
- 6. green substance found in plants
- 7. simple sugar
- 8. over and over without end
- 10. done correctly
- 11. are tiny lorganismsganism
- 15. organisms and their physical environment
