Across
- 2. day ________ plants bloom regardless of light
- 5. when flowering plants bloom based on the amount of sunlight
- 7. when flowering plants do not bloom, which signals the beginning of winter
- 8. the reason a plant's roots grow downward
- 9. a plant hormone that speeds up a cell's growth and response to light
- 11. a plant's growth response toward a stimulus
- 12. ______ day plants bloom as nights are longer
Down
- 1. complete a life cycle in two years
- 3. _______ day plants blooms as nights are shorter
- 4. complete a life cycle in one year
- 5. live for more than two years
- 6. type of tropism related to the sun's energy
- 10. type of tropism that explains why plants may coil around objects