What is the difference between external and internal respiration.
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EXTERNAL RESPIRATION:
- It is a physiological process.
- It takes place along the respiratory surface along the lungs.
- also known as breathing.
- It is a process during which oxygen is taken up by capillaries of lung alveoli and carbon dioxide is released from blood.
- It is a biological process.
- takes place within the cells( i.e.., at cellular level).
- It is the process in which oxygen is released to tissues or living cells and carbon dioxide is absorbed by the blood.
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