AP BIOLOGY

Detailed explanation-1: -The order of plant evolution is green algae, bryophytes, vascular tissue develops, seedless plants, seed plants, gymnosperms and angiosperms.

Detailed explanation-2: -The first plants to colonize land were most likely closely related to modern day mosses (bryophytes) and are thought to have appeared about 500 million years ago. They were followed by liverworts (also bryophytes) and primitive vascular plants-the pterophytes-from which modern ferns are derived.

Detailed explanation-3: -The earliest photosynthetic organisms on land would have resembled modern algae, cyanobacteria, and lichens, followed by bryophytes (liverworts & mosses, which evolved from the charophyte group of green algae). Bryophytes are described as seedless, nonvascular plants.

Detailed explanation-4: -Kingdom Plantae is broadly composed of four evolutionarily related groups: bryophytes (mosses), (seedless vascular plants), gymnosperms (cone bearing seed plants), and angiosperms (flowering seed plants).