Question

development of male gametophyte​

Answer 1

Answer:

Land plants are divided into four groups (Figure 1B). The most basal group, the bryophytes, including mosses and liverworts, lack vascular tissues. Plants of the second group, including ferns and horsetails, have a vasculature but lack seeds. Gymnosperms and angiosperms both produce seeds. Angiosperms produce flowers and include most of the familiar plants. Although land plants in all four groups share a common life cycle (Figure 1A), the relative sizes of, and nutritional relationship between, the sporophyte and gametophyte vary greatly among different groups of land plants. Gametophyte development also varies among these groups.