science

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