Symbiosis and Evolution

The cells of higher plants and animals have specialized organelles such as chloroplasts and mitochondria. There is increasing reason to believe that these organelles were once independent organisms

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Scientific American Magazine Vol 225 Issue 2This article was originally published with the title “Symbiosis and Evolution” in Scientific American Magazine Vol. 225 No. 2 (), p. 48
doi:10.1038/scientificamerican0871-48