Bryophyte life cycle
Defining characteristics:
- gametophyte dominant stage
- needs water for fertilization
- operculum
- dioecious
- develops rhizoids
- undergoes mitosis and meiosis
- heterosporous
- sporangium/spores
- mosses/liverworts/hornworts
- egg/sperm
- gametophyte dominant stage
- needs water for fertilization
- operculum
- dioecious
- develops rhizoids
- undergoes mitosis and meiosis
- heterosporous
- sporangium/spores
- mosses/liverworts/hornworts
- egg/sperm
Pteridophyte life cycle
Defining characteristics:
- undergoes meiosis and mitosis
- needs water for fertilization
- develops hyphae and rhizoids
- monoecious
- has a sporophyte dominant stage
- homosporous
- sporangium/spores
- fronds/fiddleheads/ferns
- prothallus
- egg/sperm
- undergoes meiosis and mitosis
- needs water for fertilization
- develops hyphae and rhizoids
- monoecious
- has a sporophyte dominant stage
- homosporous
- sporangium/spores
- fronds/fiddleheads/ferns
- prothallus
- egg/sperm
Gymnosperm life cycle
Defining characteristics:
- seeds
- undergoes mitosis and meiosis
- requires wind for fertilization
- sporophyte dominant stage
- cones/pine needles/pollen/pollen tubes
- creates true roots
- monoecious
- heterosporous
- seedlings/trees
- sporangium/spores
- egg/sperm
- seeds
- undergoes mitosis and meiosis
- requires wind for fertilization
- sporophyte dominant stage
- cones/pine needles/pollen/pollen tubes
- creates true roots
- monoecious
- heterosporous
- seedlings/trees
- sporangium/spores
- egg/sperm
Angiosperm life cycle
Defining characteristics:
- undergoes mitosis and meiosis
- uses vectors/wind for pollination
- heterosporous
- monoecious
- creates true roots
- seeds/fruit/seedling/flowers/petals
-ovary/style/stigma/anther/filament/carpel/male stamen
-pollen/pollen grain
- sporangium/spores
- egg/sperm
- undergoes mitosis and meiosis
- uses vectors/wind for pollination
- heterosporous
- monoecious
- creates true roots
- seeds/fruit/seedling/flowers/petals
-ovary/style/stigma/anther/filament/carpel/male stamen
-pollen/pollen grain
- sporangium/spores
- egg/sperm