Dun Aengus. Dun DÃºn aengus is the most famous of several prehistoric forts on The Aran, islands Of. Co. Galway. ireland
The female gametophyteâspecifically termed a megagametophyte âis also called the embryo sac in angiosperms. The megagametophyte produces an egg cell (or several egg cells in some groups) for the purpose of fertilization.he ovary of the gynoecium produces one or more ovules and ultimately becomes the fruit wall. Ovules are attached to the placenta in the ovary through a stalk-like structure known as a funiculus (plural, funiculi). Different patterns of ovule attachment, or placentation, can be found among plant species, these include:
Alternation of generations overview. the gametophyte produces haplod gametes by mitosis; two gametes unite and form a diploid zygote; the zygote develops into a multicellular diploid sporophyte; the sporophyte produces haploid spores by meiosis; the spores develop into multicellular haploid gametophytes.porophyte. in organisms (plants and some algae) that have alternation of gnerations, the multicellular diploid form that results from the union of gamtes; it produces haploid spores by meiosis that develop into gametophytes.