Aerobic respiration is that type of respiration in which respiration occurs in the presence of oxygen while anaerobic respiration occurs in the absence of oxygen. Aerobic respiration is more fruitful then anaerobic respiration. It is so because in aerobic respiration much more ATPs are released than anaerobic respiration
Number of ATPs released in aerobic respiration = 38 molecules of ATP
Number of ATPs released in anaerobic respiration= 2 molecules of ATP
So a huge difference in ATP release in aerobic & anaerobic respiration can be observed.