AP BIOLOGY

Detailed explanation-1: -Pinus is a gymnosperm plant that belongs to the order Coniferales. They have roots, stems, and leaves but do not have flowers. They are monoecious plants having male and female cones both on a single plant.

Detailed explanation-2: -gymnosperm, any vascular plant that reproduces by means of an exposed seed, or ovule-unlike angiosperms, or flowering plants, whose seeds are enclosed by mature ovaries, or fruits. The seeds of many gymnosperms (literally, “naked seeds”) are borne in cones and are not visible until maturity.

Detailed explanation-3: -Gymnosperms are seed-producing plants but they do not bear flowers. Phanerogams consist of both angiosperms and gymnosperms.

Detailed explanation-4: -Some non-flowering plants, called gymnosperms or conifers, still produce seeds.

Detailed explanation-5: -Gymnosperms are seed-bearing vascular plants, such as cycads, ginkgo, yews and conifers, in which the ovules or seeds are not enclosed in an ovary. The word “gymnosperm” comes from the Greek word gymnospermos, meaning “naked seeds".