Explain the cylcle of a plant's life.
The multicellular diploid sporophyte plant undergoes meiosis (reduction) and produces haploid spores. Those spores then undergo mitosis (replication) to form a multicellular haploid gametophyte plant. The gametophyte undergoes mitosis (replication) and some of its cells prouduce haploid gametes (sperm and eggs). During fertilization, egg and sperm cells fuse to create a diploid sporophyte plant.