How do organic molecules evolve?

susel1

they bond together to form other molecules Aug 24 06, 5:42 AM

Brainyblonde

The earliest life appears, possibly derived from self-reproducing RNA molecules. The replication of these organisms requires resources like energy, space, and smaller building blocks, which soon become limited, resulting in competition. Natural selection favors those molecules which are more efficient at replication. DNA molecules then take over as the main replicators. They soon develop inside enclosing membranes which provide a stable physical and chemical environment conducive to their replication: proto-cells. http://en.wikipedia.org/wiki/Timeline_of_evolution Aug 24 06, 5:12 PM