No, these life forms appear at different times, but they exist in parallel. The process of biological evolution begins with single-celled organisms. At that time, the oxygen on the earth was thin, and organisms did not evolve the ability of aerobic respiration, so anaerobic heterotrophs appeared. Then there appeared prokaryotic photosynthetic organisms such as cyanobacteria on the earth, which are autotrophic and should be aerobic. Then the oxygen on the earth gradually enriched, and a relatively advanced predator-heterotrophs appeared. At the same time, they are also aerobic, but there are still anaerobic biological residues.