Plant growth

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Across
  1. 2. a single cell is what
  2. 4. the scale
  3. 5. what.
  4. 8. another name for flowering plants
  5. 10. fruit.
  6. 12. what is there 2 of in each grain of pollen
  7. 13. where the male cones release their pollen
  8. 14. The reproductive structure of a gymnosperm
  9. 15. When a plant reacts to its environment
  10. 17. a single cell that splits and develops is
Down
  1. 1. cone-bearing plants and are mainly conifer
  2. 3. Each scale has 2 female parts called what
  3. 6. hormone used for growth in roots and stems.
  4. 7. Plant cells make a chemical that controls
  5. 9. when there is a sticky substance at the base
  6. 11. what causes changing in hormones, besides
  7. 16. What do male cones produce