Aerobic respiration is the reaction of the compound or reactant in presence of oxygen whereas anaerobic respiration indicates the non availability of oxygen.
Aerobic respiration, responsible for the production of ATP slowly. It helps in breaking glucose molecule to , and result in production of 38 ATP.
Whereas, anaerobic respiration break glucose molecule into two molecule of pyruvate. Glycolysis only releases two ATP per glucose. The anaerobic process occurs rapidly such as it lets the tissues and muscles to receive the energy for short durational activity.
This increase in production of energy explains the reason for domination of aerobic organisms on earth which helps in organisms to grow in size with multicellular system and great diversity