seedless vascular plants=gymnosperms seed plants=angiosperms Flowers are absent Flowers present Double fertlization absent Double fertlization present Endosperms is haploid Endosperm is triploid Endosperm is produced before fertilization Endosperm is produced after fertilization Fruits absent Fruits present Pollination by wind (mostly) Pollination by animals (mostly) Seed are naked Seeds are enclosed in the fruits Diplontic life cycle Diplontic life cycle Solution seedless vascular plants=gymnosperms seed plants=angiosperms Flowers are absent Flowers present Double fertlization absent Double fertlization present Endosperms is haploid Endosperm is triploid Endosperm is produced before fertilization Endosperm is produced after fertilization Fruits absent Fruits present Pollination by wind (mostly) Pollination by animals (mostly) Seed are naked Seeds are enclosed in the fruits Diplontic life cycle Diplontic life cycle.