Week 1 revision Plant Diversity

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Across
  1. 5. ______ is vital for reproduction in all Bryophytes.
  2. 6. A non-vascular seedless plant that produces nutritionally independent sporophytes.
  3. 7. Structure on a liverwort used in asexual reproduction.
  4. 10. In phylogeny, a group of organisms that includes an ancestral species and all of its descendants.
  5. 12. A group of Bryophytes that have leptoids, hydroids and ariel sporophytes.
  6. 14. Life cycle of plants that includes multicellular haploid and diploid stages.
  7. 16. In phylogeny, a grouping that does not include the common ancestor of all members of the taxon.
  8. 18. Term which refers to how the female gamete is significantly larger than the male gamete and is non-motile.
  9. 19. These Bryophytes have no stomata.
  10. 20. Diploid stage of Bryophyte life cycle.
  11. 21. An organism or life stage is ________ if it contains two sets of chromosomes.
  12. 22. Process that divides diploid cells into haploid spores.
Down
  1. 1. Channels which traverse plant cell walls enabling transport and communication between them.
  2. 2. Haploid stage of Bryophyte life cycle.
  3. 3. A key reason for sexual reproduction.
  4. 4. A phylogenetic grouping that includes an ancestor but not all of its descendants.
  5. 6. The obvious phase of a Bryophyte life cycle is _______.
  6. 8. A trait which is shared among two or more taxa inherited from the most recent common ancestor.
  7. 9. Common ancestor of all land plants.
  8. 11. The name of the theory which explains how chloroplasts became an organelle of plant cells.
  9. 13. The male reproductive organ in Bryophytes.
  10. 14. A derived trait which is unique to a taxa.
  11. 15. The female reproductive organ in Bryophytes.
  12. 17. The group of plants that include mosses, liverworts and hornworts.