Across
- 1. the transfer of pollen from male reproductive structure to female reproductive structures in plants
- 5. the internal transporting tissue in some plants that is made up of tubelike structure
- 6. a fertilized egg, produced by the joining of a sperm and an egg
- 12. the reproductive structure of a gymnosperm
- 14. an angiosperm with one seed leaf
- 15. a flower structure that encloses and protects ovules and seeds as they develop
- 19. a flowering plant that produces seeds enclosed in a protective structure
- 21. the waxy, waterproof layer that covers the leaves and stems of most plants
- 25. cap a structure that covers the tip of a root, protecting the root from injury
- 26. a seed leaf
- 28. the stage in the life cycle of a plant in which the plant produces spores
- 29. a plant that flowers when nights are longer than the plant's critical night length
- 30. a layer of cells in a plant that produces new phloem and xylem cells
- 32. the sprouting of the embryo from a seed that occurs where the embryo resumes growth
- 33. a flowering plant that completes its life cycle in one growing season
- 35. a flowering plant that completes its life cycle in two growing seasons
- 36. a plant hormone that speeds
- 38. the reproductive structure of an angiosperm
- 40. a plant with a flowering cycle that is not sensitive to periods of light and dark
- 42. a young plant that develops from the zygote
- 43. a flowering plant that lives for more than two years
- 44. the vascular tissue through which food moves in some plants
- 45. the vascular tissue through which water and nutrients move
- 46. ripened ovary and other structures of an angiosperm that encloses one or more seeds
Down
- 2. the process by which water is lost through a plant's leaves
- 3. number of hours of darkness that determines whether or not a plant will flower
- 4. a plant that produces seeds that are not enclosed by a protective fruit
- 7. a structure that contains an egg cell
- 8. a plant's response to seasonal changes in length of night and day
- 9. a plant that flowers when the night are shorter than the plant's critical night length
- 10. a period when an organism's growth or activity stops
- 11. night length
- 13. the leaf of fern
- 16. a thin, rootlike structure that anchors a moss and absorbs water and nutrients
- 17. an angiosperm with two seed leaves
- 18. a plant that produces seeds that are note enclosed by a protective fruit
- 20. tiny particles produced by seed plants that contain the cells that later become sperm cells
- 22. a leaflike structure that enclosed the bud of a flower
- 23. the growth response of a plant toward or away from a stimulus
- 24. plant a plant that has true vascular tissue
- 27. a chemical in an organism that produces a specific effect such as growth and development
- 31. a male reproductive part of a flower
- 34. a low-growing plant that lacks true vascular tissue
- 37. the plant structure that contains a young plant inside a protective
- 39. a colorful, leaflike structure of some flowers
- 41. the female reproductive part of a flower