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20.1 ORIGINS OF PLANT LIFE By Amirah Wiley, Annalisa Bernard P.8 Land Plants evolved from green algae. Plants are multicelluar eukaryotes which of most produce their own food. Transporting Resources Taller plants often have more access while smaller plants don’t. A structure for moving these resources to different parts of the plant evolved from in the form of a vascular system. A vascular system allows a plant to grow higher. Retaining Moisture Cuticle: is a waxy, waterproof layer that helps hold in the moisture. Stomata: tiny holes in the cuticle. Growing Upright Plant height is also limited by the ability of a plant to support its own weight. Lignin hardens the cell walls of some vascular tissues.