Final Answer:
The division of vascular plants with more members is the angiosperms.
Step-by-step explanation:
Divisions of Vascular Plants: Vascular plants are classified into various divisions, with two major groups being angiosperms (flowering plants) and gymnosperms (non-flowering plants).
More Members: The correct option is angiosperms. Angiosperms are the most diverse group of vascular plants, representing a vast majority of plant species on Earth. They are characterized by the presence of flowers and seeds enclosed in fruits.
Gymnosperms: Gymnosperms, the other group of vascular plants, includes plants like conifers, cycads, and ginkgoes. While gymnosperms are important, they are less numerous compared to angiosperms.
Importance of Angiosperms: Angiosperms have adapted to various environments, leading to their dominance in terrestrial ecosystems. Their diversity and widespread distribution make them the largest division of vascular plants.
Gymnosperms' Role: Gymnosperms, though not as numerous, play crucial ecological roles, especially in colder climates, and are economically important for timber and paper production.
In conclusion, the division of vascular plants with more members is the angiosperms, reflecting their evolutionary success and adaptability.