How does a mechanism called diffusion …
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Meghna Thapar 5 years, 9 months ago
The body needs a way to get oxygen in and carbon dioxide out, which is through diffusion. The carbon dioxide concentration is much greater in your blood than the alveoli. So, by the rule of diffusion, the carbon dioxide moves from the blood to the alveoli, where it can be exhaled through the lungs. Respiration refers to the exchange of gases between a living organism and its environment, while breathing is the process that moves air into and out of the lungs. Breathing (or pulmonary ventilation) has two phases - inspiration (or inhalation) and expiration (or exhalation).
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