Plants are mainly multicellular organisms, predominantly photosynthetic eukaryotes in the kingdom Plantae, which might exclude fungi plus some algae. Plant cells had been derived by endosymbiosis of a cyanobacterium into an early eukaryote about a person billion years ago, which gave rise to chloroplasts.[133] The main various clades that https://directivepublications.org/the-journal-of-radiation-oncology/