Across
- 1. A force that effects direction of growth
- 4. a plant growth substance
- 6. Under ........ Song by Queen and David Bowie
- 7. Growth movement of a plant in response to a chemical
- 10. Growth movement of a plant in response to external stimulus
- 12. Needed for photosynthesis, mainly comes from the Sun
- 14. Growth movement of a plant in response to water
- 15. Growth movement of a plant in response to touch or pressure
Down
- 2. If this is too low then seeds cannot germinate
- 3. The roots grow towards it and it is neede for photosynthesis
- 5. Growth towards the stimulus
- 8. Growth movement of a plant towards sunlight
- 9. What do plants respond to?
- 11. Growth away from the stimulus
- 13. Growth movement of a plant in response to gravity