Plants are mostly multicellular organisms, predominantly photosynthetic eukaryotes with the kingdom Plantae, which would exclude fungi and many algae. Plant cells ended up derived by endosymbiosis of a cyanobacterium into an early eukaryote about 1 billion a long time ago, which gave increase to chloroplasts.[133] The primary quite a https://directivepublications.org/the-journal-of-radiation-oncology/