Life evolved in two phases over the course of billion years
{"Image DocumentName": "Life evolved in two phases over the course of billion years", "Image ImageDescription": "Chemical evolution of organic molecules and polymers. Biological evolution from single celled prokaryotic bacteria to multi-cellular eukaryotic organisms.", "Image XResolution": "37", "Image YResolution": "37", "Image ResolutionUnit": "Pixels/Centimeter", "Image Software": "SlidePlayer", "Image YCbCrPositioning": "Centered"}