Teens & Depression. â 1 Depression is a serious problem today and one of the nationâs leading killers of teenaged boys when the number of cases of suicide it generates are factored into the equation.
The first organic molecules were probably very simple carbon-based molecules made of few atoms. These molecules then combined with other simple molecules to form more complex molecules. Over many years and probably trillions and trillions of chemical reactions, more complex molecules, and more stable molecules, formed.
So a âmetabolism secondâ mechanism seems plausible to me. The first organic cells had no nucleic acid at all. They didnât have DNA or RNA. However, the mineral surfaces with the scaffold defects made nucleic acids stable. So the first RNA formed on a crystal surface that had already evolved to adsorb organic molecules. Here are a few links on some models for mineral scaffolding. The idea that life began as clay crystals is 50 years old