Across
- 2. which occurs before flower even opens
- 4. plant is pollinated by insects
- 10. by water
- 11. a plant is pollinated by vertebrates, such as a bird and bats
- 12. An agent that moves pollen, such as a bee or water
- 14. transfer of pollen from an anther to the stigma in angiosperms or from the microsporangium to the micropyle in gymnosperms.
- 16. or bearing flowers
- 17. by wind
- 18. colorless, odorless gas produced by burning carbon and organic, compounds and by respiration
- 19. when pollen move from the male part of a flower to the female part of the same flower, or another flower on the same plant
Down
- 1. when pollen from one flower is delivered to the flower of a different species
- 3. colorless, odorless reactive gas, that chemical element of the atomic number 8 and the life-supporting component of the air.
- 5. of the modified often brightly colored leaves of the corolla of a flower.
- 6. Baskets-The hairy area on a bee's hind legs where pollen collects
- 7. process by which green plants and some other organisms use sunlight to synthesize food from carbon dioxide and water.
- 8. between plants of different species
- 9. fertilized ripened ovule of the flowering plant containing an embryo and capable of germination to produce a new plant.
- 13. from a plant stem that is typically a flattened expanded variably shaped greenish organ, constitutes a unit of the foliage, and function primarily in food manufacture by photosynthesis.
- 15. action of polluting especially by Environmental contamination with manmade waste.