Chapter 25

1234567891011121314151617181920212223242526272829303132333435363738
Across
  1. 3. vascular tissue that conducts water and nutrients
  2. 6. the region where cells divide throughout a plant’s life span on the root and shoot tips
  3. 7. leaves that produce spores
  4. 9. the structures on gametophytes that produce gametes
  5. 10. in which the haploid stage is dominant; no multicellular diploid stage
  6. 12. the polymer that protects the spores and pollen of plants
  7. 15. a waxy, waterproof covering
  8. 16. the structures on gametophytes that produce egg cells
  9. 17. the gametophyte growth form of the liverworts
  10. 19. small pieces of tissue in liverworts used for asexual reproduction
  11. 20. the n life stage; produces gametes
  12. 21. the structures on the bottom of fern fronds which house sporangia
  13. 22. in which only one type of spore is produced
  14. 24. the structures on gametophytes that produce sperm cells
  15. 25. pores that open and close to regulate the exchange of gases
  16. 27. in which the diploid stage is dominant; no multicellular haploid stage
  17. 28. cells that undergo meiosis to produce spores
  18. 30. the 2n life stage; produces spores
  19. 32. AKA, the nonvascular plants
  20. 34. a bundle of vascular tissue in leaves
  21. 37. a structure in mosses from which gametophores grow
  22. 38. in which there are both multicellular haploid and diploid stages
Down
  1. 1. the group that includes some of the green algae and the land plants
  2. 2. leaves with multiple veins
  3. 4. the name for land plants; because of the need to protect the embryo
  4. 5. a polymer that strengthens the cell walls of xylem cells
  5. 8. the closest living relatives of the land plants
  6. 11. plants without xylem and phloem
  7. 12. the structures on sporophytes that produce spores
  8. 13. transports food from photosynthesis throughout the plant
  9. 14. plants with xylem and phloem
  10. 18. cone-like structures that produce spores
  11. 23. in which two types of spores are produced
  12. 26. leaves with a single vein
  13. 29. vascular tissue that transports sugars throughout the plant
  14. 31. cells in xylem that conduct the water and nutrients
  15. 33. cells in the phloem that transport the sugars
  16. 35. a young fern frond
  17. 36. conducts water and minerals up to the shoot