“THE MITOCHONDRIA upon which these eukaryotic cells rely were once free-living prokaryotic cells but now live cooperative lives.”
http://www.sciencedirect.com/science/article/pii/S0960982207014996
“THE MITOCHONDRIA upon which these eukaryotic cells rely were once free-living prokaryotic cells but now live cooperative lives.”
http://www.sciencedirect.com/science/article/pii/S0960982207014996