AP BIOLOGY

Detailed explanation-1: -Explanations of Classifications (beginning with “Class") Class divides plants into the two large groups, Dicots and Monocots.

Detailed explanation-2: -Plants that have xylem-water-carrying tubes-and phloem-food-carrying tubes-are called vascular and are what you generally think of when you think of plants. Plants that do not have this transport system are called nonvascular and are small, simple plants such as mosses.

Detailed explanation-3: -Angiosperms and gymnosperms are the two major groups of vascular seed plants. Angiosperms, which are flowering plants, are the largest and most diverse group within the kingdom Plantae. With around 300, 000 species, they represent approximately 80 percent of all the known green plants now living.

Detailed explanation-4: -Plant divisions classify plants based on whether they reproduce by spores or seeds. Spore-bearing plants include ferns, club mosses, and horsetail. Seed-bearing plants are divided into gymnosperms and angio-sperms. plants that produce naked seeds.