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Evolution of fertilization mechanisms including pollination
BRYOPHYTES
In bryophytes, for example in mosses plant, the multicellular gametangia are formed at the tips
of the leafy gametophytes. When sperm are produced from the antheridium, they swim with the
help of flagella and presence of a film of water to the archegonia. One sperm (haploid) unites
with an egg (also haploid) to form a diploid zygote which divides by mitosis and grows into a
sporophyte. The sporophyte harbors the sporangium at its tips. Spore...