Aerobic respiration is a process in which organisms break down glucose to produce energy in the presence of oxygen. This process is common in higher organisms, which include animals and plants.

Reasons why aerobic respiration is common in higher organisms:

1. Energy production: Higher organisms require a lot of energy to carry out their daily activities, such as movement, reproduction, and growth. Aerobic respiration provides a large amount of energy in the form of ATP, which is used for these activities.

2. Efficiency: Aerobic respiration is a highly efficient process, producing a large amount of energy from each glucose molecule. This makes it an ideal process for higher organisms, which require a lot of energy to survive.

3. Oxygen availability: Higher organisms have complex respiratory systems that allow them to take in oxygen and distribute it throughout their bodies. This makes it possible for them to carry out aerobic respiration, which requires oxygen.

4. Evolution: Higher organisms have evolved to carry out aerobic respiration as a means of producing energy. This process has been refined over millions of years of evolution, making it an integral part of their biology.

In summary, aerobic respiration is common in higher organisms because it provides a large amount of energy, is highly efficient, requires oxygen, and has evolved as a means of energy production.