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)Spores B. After fertilization, a zygote develops to form the embryo and the ovule forms the seed. The following figure shows the life cycle of a gymnosperm. Classification of Gymnosperms )Angiosperms reproduce with A. )Gymnosperm C.)Angiosperm D.)Pupa 2. Over time, some … See more. As in gymnosperms, the male gametophyte is the pollen grain. )Gametophyte B. In order for fertilization to occur in most flowering plants, insects or other animals must transport the pollen to the pistil. Archegonia are absent : Distinct archegonia is present. 12. The Pollen Grain: the Male Gametophyte. The fusion of the male and female gametes occurs. )Bees see blue & purple the best . Which is one advantage of sexual reproduction? So, this is the key difference between sporophyte and gametophyte. )In a pouch on the mother's body C.)Inside the mother's body D.)Inside an amniotic egg 3. Gymnosperms and Angiosperms are two major groups of Seed Plants (Cryptogams). The small plant, called a gametophyte, produces both male and female gametes. As the male gametophyte, pollen is a multicellular, haploid stage that produces the sperm.. Pollen development occurs in a structure called the microsporangium (micro = small), located within the … The zygote matures into a new diploid sporophyte, thus completing the cycle. Furthermore, sporophyte produces haploid spores while the gametophyte produces male and female gametes. Which combination of sex chromosomes results in a male human being? Read about the Unique Features of Bryophytes here. A major distinguishing feature of angiosperms is the practice of double fertilization. The discharge of male gametes happens near the mouth of the archegonium. Pollen is often described in everyday language as plant sperm, but this is not the case! )In leg an egg laid in water B. The female gametophyte is parenchymatous and large. XX-(this female) YY XY**(this is male) either XX or YY ... gametophyte ** C.) sporophyte D.) zygote ... gymnosperms. Pollen is the male gametophyte in angiosperms and gymnosperms. In the previous post, we discussed the General Characters and Affinities of Gymnosperms.Here, in this post, we will discuss the Similarities and Differences between Gymnosperms and Angiosperms The gametophyte even has special structures to produce the eggs and sperm. Once an egg and sperm meet, either from the same gametophyte or from different gametophytes, a zygote is formed. In bryophytes and algae, gametophyte generation is dominant while in pteridophytes, gymnosperms and angiosperms, the gametophyte generation is dominant. Tube cell and a generative cell is present in male gametophyte, which divides and form two male … The female gametophyte contains seven-celled and eight nucleate embryo sac. )Seeds C.)Cones D.)Amniotic Eggs 4. 1. )Placental mammals develop A. The gametophyte comprises the main plant (the green moss or liverwort), while the diploid sporophyte is much smaller and is attached to the gametophyte. The haploid stage, in which a multicellular haploid gametophyte develops from a spore and produces haploid gametes, is the dominant stage in the bryophyte life cycle. Pollen definition, the fertilizing element of flowering plants, consisting of fine, powdery, yellowish grains or spores, sometimes in masses. Male gametes reach female gametophyte and the egg cell gamete though a pollen tube: an extension of a cell within the pollen grain. )The sporophyte generation produces spores that grow into a A. The plant gametophytes produce male and female gametes which unite at pollination to form a new diploid zygote. Gymnosperms vs Angiosperms (Similarities and Differences between Gymnosperms and Angiosperms).

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