Plants reproduce through various methods like seeds, spores, leaves, stem cuttings, underground stems, and suckers to ensure their survival. Examples of plant reproduction through seeds include papaya and durian. Mushrooms and ferns reproduce through tiny spores that are easily spread by wind. Begonias and bryophyllum reproduce through leaves, while hibiscus, roses, and tapioca reproduce via stem cuttings. Sweet potatoes reproduce underground through stems. Bananas and pineapples reproduce using suckers. If plants did not reproduce, they would become extinct.