Week 1 revision Plant Diversity

1. A derived trait which is unique to a taxa.
3. The female reproductive organ in Bryophytes.
5. Common ancestor of all land plants.
8. A trait which is shared among two or more taxa inherited from the most recent common ancestor.
10. Life cycle of plants that includes multicellular haploid and diploid stages.
13. A non-vascular seedless plant that produces nutritionally independent sporophytes.
14. An organism or life stage is ________ if it contains two sets of chromosomes.
15. Structure on a liverwort used in asexual reproduction.
18. The name of the theory which explains how chloroplasts became an organelle of plant cells.
21. A phylogenetic grouping that includes an ancestor but not all of its descendants.
23. Haploid stage of Bryophyte life cycle.
24. The male reproductive organ in Bryophytes.

2. Channels which traverse plant cell walls enabling transport and communication between them.
4. A key reason for sexual reproduction.
6. These Bryophytes have no stomata.
7. Diploid stage of Bryophyte life cycle.
9. ______ is vital for reproduction in all Bryophytes.
11. The obvious phase of a Bryophyte life cycle is _______.
12. In phylogeny, a group of organisms that includes an ancestral species and all of its descendants.
16. A group of Bryophytes that have leptoids, hydroids and ariel sporophytes.
17. The group of plants that include mosses, liverworts and hornworts.
19. Term which refers to how the female gamete is significantly larger than the male gamete and is non-motile.
20. In phylogeny, a grouping that does not include the common ancestor of all members of the taxon.
22. Process that divides diploid cells into haploid spores.