caption: The Earliest Life: Photosynthetic Organisms
exif: {"Image DocumentName": "The Earliest Life: Photosynthetic Organisms", "Image ImageDescription": "Precambrian rocks from about 3.5 billion years ago contain fossils of one-celled organisms. These organisms resemble modern cyanobacteria. Cyanobacteria are one-celled organisms that make their own food through photosynthesis. In photosynthesis, organisms use carbon dioxide and the energy of sunlight to make food in the form of hydrocarbons. Photosynthesis releases oxygen into the atmosphere.", "Image XResolution": "37", "Image YResolution": "37", "Image ResolutionUnit": "Pixels/Centimeter", "Image Software": "SlidePlayer", "Image YCbCrPositioning": "Centered"}