Question

В чем проявляются эволюционные изменения покрытосеменных растений,по сравнению с папоротниковидными. (Не менее 4-х изменений)

Answer 1

размножение не зависит от воды, образование семян, деференцировка тканей: проводящие пучки. 

Answer 2

Evolutionary Changes in Seed Plants Compared to Ferns

1. Reproduction: - Seed plants: Reproduce through seeds, which are protected embryos that can survive harsh conditions and be dispersed over long distances. - Ferns: Reproduce through spores, which are not protected and have limited dispersal capabilities.

2. Vascular System: - Seed plants: Have a well-developed vascular system with xylem and phloem, allowing for efficient transport of water, nutrients, and sugars. - Ferns: Have a less complex vascular system compared to seed plants.

3. Dominance of Sporophyte: - Seed plants: The sporophyte generation is dominant and long-lived, while the gametophyte is reduced and dependent on the sporophyte. - Ferns: The gametophyte generation is dominant and long-lived, while the sporophyte is relatively short-lived.

4. Adaptation to Terrestrial Environment: - Seed plants: Have evolved various adaptations to thrive in diverse terrestrial environments, including the development of roots, leaves, and reproductive structures like flowers and fruits. - Ferns: While also adapted to terrestrial environments, do not exhibit the same diversity of reproductive structures and specialized adaptations seen in seed plants.

These evolutionary changes highlight the significant differences between seed plants and ferns, showcasing the adaptations that have allowed seed plants to become the dominant group of plants on Earth.