Sporophyte has sporangium. Sporangium release spores, then the spore grow into protonema. The antheridium produce sperm while the archegonium produce egg. After that the sperm and egg are combined by sperm swims to the archegonium, then it fertilize. After that the seed fall to the ground and grows into a new plant.
In the last page you said that "the seed fall to the ground and grows into a new plant". Whisk fern doesn't produce seed. And its better to write sporophyte rather than new plant.
BalasHapus