plant growth

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Across
  1. 1. tiny grain of pollen contains two ___ cells
  2. 4. inside ovules are
  3. 5. a single cell
  4. 7. reproductive structure of gymnosperm
  5. 10. single cell that's divided and developed
  6. 11. plants reaction to its environment
  7. 13. than female male cones are ______
  8. 14. hormone responsible for the growth of roots and stems
  9. 15. two female parts on each scale
Down
  1. 2. cones can be _______
  2. 3. male cones are ___
  3. 6. cone-bearing plants and mainly conifer trees
  4. 8. male cones produce
  5. 9. chemical made by plants controlling ripening of fruits
  6. 12. of scale where the pollen grains get trapped at on female cones