Plantae alternation of generations.
Multicellular, haploid gametophytes produce haploid gametes by
Fertilization of egg and sperm form a diploid zygote, which undergoes
mitosis to produce the diploid sporophyte.
A mature sporophyte may undergo meiosis to produce haploid spores,
which can germinate into a haploid gametophytes by mitosis.
Multicellular plant embryos develop from zygotes within tissues of the
The parent provides nutrients to dependent embryos through placental