What are three differences between gymnosperms and angiosperms?

1. Seed Enclosure: Gymnosperms produce naked seeds exposed on cone scales; angiosperms produce seeds enclosed within fruits. 2. Reproductive Structures: Gymnosperms reproduce using cones; angiosperms reproduce using flowers. 3. Fertilization Process: Gymnosperms undergo single fertilization; angiosperms undergo double fertilization, leading to the formation of endosperm.