In the plant kingdom, life cycles refer to the alternation of generations between a haploid (gametophyte) stage and a diploid

    In the plant kingdom, life cycles refer to the alternation of generations between a haploid (gametophyte) stage and a diploid (sporophyte) stage. This process is seen across various plant groups, and the dominance of either stage varies. Here are four examples of plant life cycles: 1. **Algae** (e.g., *Spirogyra*): - Haploid-dominant, with gametophyte as the dominant phase. - Sexual reproduction involves the fusion of gametes to form a zygote. 2. **Bryophytes** (e.g., *Moss*): - Gametophyte-dominant, where the main plant is haploid, and sporophytes grow from the gametophyte. 3. **Pteridophytes** (e.g., *Fern*): - Sporophyte-dominant life cycle, with independent, small gametophytes. 4. **Angiosperms** (e.g., *Flowering Plants*): - Sporophyte-dominant life cycle with a highly reduced gametophyte (pollen and embryo sac).