Origins+of+Life

Questions/notes for viewing [|Origins]: How Life Began


 * 1) How do snottites survive in harsh, acidic conditions? (Important for understanding how early life forms could have survived under harsh conditions)
 * 2) What are the four most common elements in living things? (The stuff of life is not uncommon!)
 * 3) Describe Stanley Miller's experiment, the results and the implications. (creation of amino acids -> proteins; one of 4 major categories of biological molecules)
 * 4) How long ago did life start to exist on earth. What is the evidence?
 * 5) Heavy bombardment may have caused amino acids to fuse into peptides!
 * 6) How did the [|cyanobacteria] in the [|stromatolites] change the atmosphere.