By being held together in a regular pattern on clay crystals, these molecules combine to form proteins and polynucleotides. ... Assuming that the microspheres combined with self-replicating molecules, we are looking at a very ancient organism. ... Darwin's and Wallace's concept was based on five premises: 1) there is stability in the process of reproduction 2) in most species, the number of organisms that grow, survive, and reproduce is small compared to the number initially produced 3) in any population, there are variations that are not produced by the environment and some are inhe...

• Word Count: 2685
• Approx Pages: 11
• Grade Level: High School