science

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Across
  1. 3. movement towards or away from touch
  2. 5. growth promoter and growth inhibitor are both this
  3. 6. restricts growth of plants
  4. 7. direction of movemnt depends on direction of stimulus
  5. 9. a thing or event that evokes a specific functional reaction in an organ or tissue
  6. 10. movement towards or away from sunlight
  7. 13. plants use it to climb up other plants or fences
  8. 15. develops an organism
  9. 17. movement is neither towards nor away from stimuli
  10. 18. stimulates stem elongation
  11. 20. movement towards or away from water
  12. 21. helps in secondary growth
Down
  1. 1. movement towards or away from gravity
  2. 2. multicellular organisams use this as communication between cells
  3. 4. promotes growth of plants
  4. 8. makes plant grow towards the sun
  5. 11. a plant that closes at touch
  6. 12. functions againt auxins and gibberlins
  7. 14. natural gaseous phytohormone
  8. 16. movement towards or away from chemicals
  9. 19. plant hormones