Across
- 3. Microsporangia in seed plants
- 5. originated 360 million years ago to become the dominant terrestrial producer
- 6. Plants and Charophytes have their structure of _________ sperm in common.
- 8. Plant vasculature from roots to shoots carrying aqueous solution.
- 11. Microsporangium ploidy.
- 12. The halving of ploidy
- 14. Plant embryos are multicellular and ________.
- 17. ploidy of gametophyte generation
- 18. Eukaryotic super group containing plants.
- 19. What group is the closest ancestor to land plants?
- 20. Sporangium develop into male and female specialized structures
- 24. Plants have __________ generations.
- 27. Vascular plants have well-developed roots and ______.
- 29. Groups of sporophylls that can be found in Monilophyta
- 30. A group of sporangia on a fern sporophyll
- 31. Non-true root structures
Down
- 1. Small herbaceous plants including club mosses
- 2. Allows plants to sustain continual growth in length
- 4. Dominant generation of angiosperms
- 7. ______stems of horsetails have strobilus.
- 9. Immature fern sporophyte.
- 10. The common name for plants in Anthocerophyta
- 13. Spore-bearing leaves
- 15. Needed for fertilization in nonvascular plants
- 16. In what structure does fertilization of the egg occur?
- 21. How many clades of seedless vascular plants are there?
- 22. The joining of haploid gametes.
- 23. Which came first vascular plants or nonvascular plants?
- 25. hepatophyta
- 26. female sporangium
- 28. _______, also called ever-greens, are home to 806 species