AP BIOLOGY

Detailed explanation-1: -Gymnosperms. Gymnosperms are also called Naked seeds because their seeds are open to the air without any Covering and are kind of naked which makes the name so. They have no flowers or Fruits. One of the major Groups of this category is Conifers.

Detailed explanation-2: -Pteridophytes (non-flowering spore plants) The pteridophyte group includes ferns, horsetails, club mosses, and other vascular plants without seeds. They reproduce by spores formed on the surface of leaves, or in cone-like structures.

Detailed explanation-3: -Non-flowering plants include mosses, liverworts, hornworts, lycophytes and ferns and reproduce by spores. Some non-flowering plants, called gymnosperms or conifers, still produce seeds.

Detailed explanation-4: -Maidenhair fern trees (Gingko biloba) and Gnetales are also non-flowering plants. Cone-like structures on male plants produce pollen and the female plants produce the ovules that eventually become seeds.

Detailed explanation-5: -Pine is a non-flowering tree i.e. it does not produce flowers.