21. All three bryophyte groups share a haploid-dominant life cycle and unbranched sporophytes . 22. The horn-shaped sporophyte grows from an archegonium embedded deep in the gametophyte. 23. The condition of having separate sporophyte and gametophyte plants is call alternation of generations. 24. Ensuing evolution caused the sporophyte to become increasingly complex, both organographically and anatomically. 25. The spores of a sporophyte produce either tetrasporophytes. 26. In the mosses and hornworts a cuticle is usually only produced on the sporophyte . 27. Multiple sporophytes are often present in one plant. 28. The sporophyte is likened to an elongated spindle. 29. The fertilised zygotes germinate into young sporophytes which will grow into the mature seaweed. 30. The sporophyte has a chromosome number of 108.
