According to some scientists, life on Earth developed through natural chemical and physical processes. The Miller-Urey experiment simulated hypothetical conditions thought to be present on early Earth and tested the hypothesis that the conditions favored -
A. The formation of simple organic molecules from inorganic materials.
B. The evolution of eukaryotes through the process of endosymbiosis.
C. An episode during which large numbers of species became extinct.
D. A decrease in asexual reproduction in primitive organisms.