Final answer:
Sporophytes reproduce by producing haploid spores through a process called meiosis. These spores can grow directly into a new gametophyte without the need for fertilization, representing asexual reproduction in plants.
Step-by-step explanation:
The question pertains to how sporophytes reproduce. Sporophytes are the diploid phase of a plant's lifecycle that follows the alternation of generations pattern. The sporophyte phase produces haploid spores by a process called meiosis. These spores are then dispersed and can grow into a new organism without the need for fertilization. They ultimately develop into the haploid gametophyte, which is part of the sexual phase of the life cycle.
In summary, sporophytes reproduce by producing haploid spores that grow into new individuals. This is a form of asexual reproduction, whereas sexual reproduction involves the formation of seeds through fertilization. Spores require relatively little energy and matter to produce and are capable of growing into new individuals autonomously.