Across
- 4. spore-producing structures in ferns
- 11. division of non-vascular, spore-producing plants eg hornworts and mosses
- 13. the diploid phase that reproduces asexually to form spores
- 14. the male microgametophyte of seed plants that contains the sperm cells
- 15. land plant spores that develop into the female gametophyte
- 16. substance found in some cell walls to provide support eg in bark
- 17. land plants that develop from an embryo protected by maternal tissue
- 18. the part of the ovary that houses female germ cells and becomes the seed after fertilization
- 19. the haploid phase that produces the gametes that form zygotes
Down
- 1. the spread of plant seeds away from the parent plant
- 2. hair-like filaments used by bryophytes to anchor themselves and to absorb water and minerals
- 3. system composed of conducting tissues (xylem and phloem)
- 5. hydrophobic protective layer on the leaf epidermis
- 6. non-flowering seed-producing plants eg gingkos and conifers
- 7. a haploid reproductive cell that gives rise to a gametophyte
- 8. species of archaeplastid that land plants evolved from
- 9. non-parasitic plants that grow on other plants and absorb nutrients from rain and air eg orchids
- 10. pores in the leaf epidermis that facilitate gaseous exchange
- 12. flowering seed-producing plants eg roses and lilies
