Crossword puzzle

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Across
  1. 2. the part of the flower which receives the pollen grains
  2. 4. fruits with wing-like structures are dispersed by __________
  3. 6. the process in which pollen grains are transferred from anther to stigma
  4. 9. the process in which the male reproductive cell fuses with female reproductive cell
  5. 12. the part of the flower becomes seed after fertilisation
  6. 15. the process in which the solid turns to liquid at a fixed temperature
  7. 16. the part of the flower becomes fruit after fertilisation
  8. 19. the process in which the liquid turns to gas at a fixed temperature
  9. 20. when water boils, _____________ is formed
Down
  1. 1. the process in which the liquid turns to gas at any temperature
  2. 3. clouds are made up of water _________
  3. 5. fern reproduce from __________
  4. 7. during condensation, the gas will _________ heat to become liquid
  5. 8. fruits with juicy fresh are dispersed by ___________
  6. 9. the process in which the liquid turns to solid at a fixed temperature
  7. 10. plants dispersed the seeds to prevent ________________
  8. 11. the part of the flower which produces pollen grain
  9. 13. during evaporation, the liquid will ______ heat to become gas
  10. 14. non-flower plant which reproduce by spores
  11. 17. the process in which the gas turns to liquid
  12. 18. the young pant does not have fruit and _________