Chapters 29 and 30
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| Multicellular, haploid. Gametangia responsible for production of sperm cells. | ||
| Multicellular, haploid. Gametangia responsible for production of egg cells. | ||
| Non-vascular plants of three main taxa (Bryophata, hornworts, and liverworts). Most primitive plants. | ||
| Inconspicuous sporophyte generation; reliance on motile sperm; reliance on haploid spores for dispersal; lack of specialized roots | ||
| Seedless, vascular plants. Note: Sporophyte generation is dominant over gametophyte. | ||
| Increases efficiency rate of pollination. Those that do rely on other pollinators are brightly colored. | ||
| Multicellular, diploid. Fruits allow plants to take advantage of animals in the dissemination of seeds. Bare seeds are limited in ability to disperse. | ||
| Multicellular, haploid. Reproductive structures of the gametophyte generation, in which haploid gametes form via mitotic division. | ||
| Haploid, multicellular. Mitotically produced haploid gametes. | ||
| Plants that produce spores of more than one morphology, such as seed-bearing plants. | ||
| Plants that produce spores of one morphology, such as the megasporangium (egg) and the microsporangium (sperm). | ||
| Gametophyte is dominant over sporophyte generation, and sporophyte relies on gametophyte for nutrient supply. Gametes produced from seperate plants. Sporophyte grows from within female gametophyte, releasing spores that will later become gametophytes. | ||
| Give rise to female gametophyte, which remains associated with parental sporophyte. | ||
| Give rise to male gametophyte, the pollen. | ||
| Waxy cuticle preventing loss of gases and water, or when need be, undergo photorespiration. |
