Plant Growth

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Across
  1. 2. a single cell
  2. 9. as the single cell divides and develops
  3. 10. "flowering plants"
  4. 11. each grain of pollen contain two
  5. 13. "earth"
  6. 14. reproductive structure of the gymnosperm
  7. 15. "to turn or change"
Down
  1. 1. cone-bearing plants
  2. 3. each scale contains two female parts called
  3. 4. responsible for growth of roots and stems
  4. 5. when a plant reacts to its environment
  5. 6. plant cells make chemicals called
  6. 7. greek for naked
  7. 8. male cones produce
  8. 12. "light"