AP BIOLOGY

Detailed explanation-1: -Seed plants: Systematics The seed plants are often divided arbitrarily into two groups: the gymnosperms and the angiosperms. The basis for this distinction is that angiosperms produce flowers, while the gymnosperms do not.

Detailed explanation-2: -The word “conifers” means “bearing cones.” Conifers are plants that use cones to house their seeds. Conifers are woody plants and most of them are trees such as pine trees, firs, cypresses, junipers, cedars, and redwoods. Conifers reproduce using their cones. Some cones are male and some are female.

Detailed explanation-3: -Angiosperms and gymnosperms are the two major groups of vascular seed plants.

Detailed explanation-4: -Gymnosperms are one of the ancient plant groups with seed production. They are a group of vascular plants with naked (without ovary) seeds. Gymnospems are also heterosporous. Furthermore, gymnosperms produce two different types of cones, namely, large female cones and small male cones.