Seed plants all have flagellated sperm
Seed Plants
Like all seed plants, gymnosperms are heterosporous. They have flagellated sperm, but the male gametophyte grows a pollen tube, a long filament through.
Plant Diversity II
The only extant seed plants that have flagellated sperm are Ginkgo and Cycadales . dynamic microtubule arrays, occurred in all microtubules at all stages of.
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Description:This sporophytic tissue nourishes the gametophyte; therefore, the gametophyte does not live independently from the sporophyte and is even more reduced in size. Plants benefited by becoming pollinated, insects benefited by receiving food. The sporangia and cells are part of the sporophyte 2N plant. Where can we find these trees on campus? Most flowers have showy petals to attract pollinators, bribing insects and other animals with nectar, to get them to carry the male gametophyte through the air to another flower. In seedless plants the fertilization and development of the next-generation sporophyte takes place separate from the first-generation sporophyte.
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