What advantages over an aquatic organism does a terrestrial organism have with regard to obtaining oxygen for respiration
Answers
Aquatic animals are those animals which live in water. So, they are not directly exposed to the environment. Hence, they use the oxygen that is dissolved in the water for carrying out respiratory processes. Therefore, aquatic animals will have a higher breathing rate than the terrestrial ones.
Terrestrial animals are directly exposed to the environment, hence they can take in the oxygen that is present in the atmosphere. Therefore, these animals will have a lower breathing rate than aquatic animals.
Terrestrial organisms breathe by using atmospheric oxygen whereas aquatic organism takes oxygen dissolved in water. A terrestrial animal has over an aquatic animal with regard to obtaining oxygen for respiration. It's because the air in the atmosphere contains the maximum amount of oxygen.