Across
- 2. Scale contains two female parts
- 6. The pollen grains of pine trees have two little
- 8. Inside the ovules
- 10. of the flower are often brightly colored in order to attract insects
- 11. ___ cones are smaller than female cones
- 13. All cone-bearing plants
- 15. Male cones produce
Down
- 1. When a plant reacts to its environment
- 3. Single cell that divides and develop
- 4. The reproductive structure of a gymnosperm
- 5. A single cell
- 7. Flowering plants
- 9. Tiny grain of pollen contains two ___ cells
- 12. Causes the changes in the hormone levels, instead of light
- 14. Trapped in a sticky substance at the base of each ____