Question

In which method oxygen was transported in animals​

Answer 1

Answer:

Oxygen is carried by red blood cells which have specialised adaptations for this function. Red blood cells contain the chemical haemoglobin which binds reversibly to oxygen. Red blood cells absorb oxygen in the lungs and then release it again in the tissues...

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Answer 2

Explanation:

Oxygen is primarily transported through the blood by erythrocytes. These cells contain a metalloprotein called hemoglobin, which is composed of four subunits with a ring-like structure.