When and where does reduction division take place in the life cycle of a liverwort, a moss, a fern, a gymnosperm and an angiosperm?
Liverwort- In liverworts, the principle plant-frame is haploid (gametophytic). It bears the male and woman intercourse organs which produce gametes. These gametes fuse to shape a zygote. The zygote develops at the gametophytic plant-frame to shape a sporophyte. The sporophyte is differentiated into the foot, seta, and pill. Many haploid spores are produced because of the discount department taking region withinside the tablet. Moss- In mosses, the number one protonema (evolved withinside the first stage) develops into the secondary protonema. Both those degrees are haploid or gametophytic. The secondary protonema bears the intercourse organs which produce gametes. These gametes fuse to shape a zygote. The zygote develops right into a sporophyte. Many spores are shaped due to the discount department taking area withinside the pill of this sporophyte. Fern- In ferns, the primary plant-frame is sporophytic. Its leaves are called sporophylls and those endure the sporangia. Reduction department takes region in those sporangia, thereby generating many spores. Gymnosperm- In gymnosperms, the primary plant-frame is sporophytic. They undergo forms of leaves - microsporophylls and megasporophylls. Reduction department takes area withinside the microsporangia gift at the microsporophylls (generating pollen grains) and at the megasporangia gift at the megasporophylls (generating megaspores). Angiosperm- In angiosperms, the principle plant-frame is sporophytic and bears flowers. The male intercourse organ withinside the flower is the stamen, at the same time as the lady intercourse organ is the pistil. Reduction department takes region withinside the anthers of the stamen (generating haploid pollen grains) and withinside the ovary of the pistil (generating eggs).
