Plant Growth

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Across
  1. 1. contains a sticky substance that traps pollen
  2. 4. when the sperm and the egg join together it forms this
  3. 5. flowering plants
  4. 7. means light
  5. 9. hormone responsible for growth of roots and stems
  6. 10. when a plant reacts to the environment
  7. 12. as a single cell divides and developes it is called this
  8. 13. all cone-bearing plants and are mainly conifer trees
  9. 14. chemicals that control the ripening of fruit
Down
  1. 2. the reproductive structure of a gymnosperm
  2. 3. what the male cones produce
  3. 6. these are the two female parts that each scale contains
  4. 8. to turn of change
  5. 11. two of these cells are in each grain of pollen
  6. 13. response to gravity