AP BIOLOGY

Detailed explanation-1: -The non-flowering plants that use seeds are called gymnosperms. Gymnosperm means “naked seeds". They are called this because their seeds are open to the air with no covering such as the seeds of flowering plants. One of the major groups of gymnosperm plants is the conifer.

Detailed explanation-2: -Some non-flowering plants, called gymnosperms or conifers, still produce seeds.

Detailed explanation-3: -Some plants don’t produce flowers and seeds. Plants such as ferns and mosses are called nonflowering plants and produce spores instead of seeds. There is also another group called the Fungi, that include mushrooms, and these also reproduce by spores.

Detailed explanation-4: -Angiosperms, also called flowering plants, have seeds that are enclosed within an ovary (usually a fruit), while gymnosperms have no flowers or fruits, and have unenclosed or “naked” seeds on the surface of scales or leaves. Gymnosperm seeds are often configured as cones.