Across
- 4. the organ that takes up water and nutrients from the soil
- 6. the location of photosynthesis
- 7. a plant response to light
- 9. an factor that causes a response
Down
- 1. a response to a stimulus
- 2. all tissues are made up of these
- 3. the process by which plants make food
- 5. a plant response to gravity
- 8. the plant hormone the acts on the dark side of the shoot