Chemical context for biology: origin of life and chemical evolution
http://bio1510.biology.gatech.edu/module-3-molecules-membranes-and-metabolism/chemical-context-for-biology-origin-of-life-and-chemical-evolution/
http://bio1510.biology.gatech.edu/module-3-molecules-membranes-and-metabolism/chemical-context-for-biology-origin-of-life-and-chemical-evolution/