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Biology - GCSE AQA - Combined Science - Higher

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Pregunta:

What are alveoli?

Autor: yxng.edxn



Respuesta:

Air sacs in which gas exchange happens. Oxygen diffuses out of the alveolus into the blood, and carbon dioxide diffuses out of the blood into the alveolus to be breathed out.


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Air sacs in which gas exchange happens. Oxygen diffuses out of the alveolus into the blood, and carbon dioxide diffuses out of the blood into the alveolus to be breathed out.
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