Plant Growth

123456789101112131415
Across
  1. 3. A single cell
  2. 7. Responsible for the growth of roots and stems
  3. 9. Two of these in every grain of pollen
  4. 10. Plant cells make chemicals called ______
  5. 12. Place where pollen grains land in sticky substance
  6. 13. Protects flower while the flower develops
  7. 14. When a plant reacts to it's environment
  8. 15. Male cones produce this
Down
  1. 1. Flowering plants
  2. 2. brightly colored to attract insects to have them collect pollen to take to other plants
  3. 4. All cone bearing plants and are mainly conifer trees
  4. 5. A divided single cell that develops
  5. 6. Female parts that each scale contains two of
  6. 8. The reproductive structure of a gymnosperm
  7. 11. Female part of the flower