Name three groups of plants that bear archegonia. Briefly describe the life cycle of any one of them.
Archegonium is the woman intercourse organ that produces the woman gamete or egg. It is gift withinside the lifestyles cycles of bryophytes, pteridophytes, and gymnosperms. Life cycle of a fern (Dryopteris) Dryopterisis a not unusualplace fern with pinnately-compound leaves. The fundamental plant-frame is sporophytic. Many sporangia are borne at the decrease surfaces of its mature leaves. Each sporangium has spore mom cells which undergo meiosis to supply haploid spores. On maturing, those spores dehisce and germinate to present upward push to a heart-shaped gametophyte referred to as prothallus. Theprothallus bears the male and lady intercourse organs known as antheridia and archegonia respectively. The antheridia produce sperms that swim in water to attain the archegonia. The egg is produced with the aid of using the archegonia. As a end result of fertilisation, a zygote is formed. The zygote paperwork an embryo, which in flip develops into a brand new sporophyte. The younger plant comes out of the archegonium of the discern gametophyte.
