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10-05-2021
Biology

contestada

What are alveoli? A. Carbon dioxide molecules B. Part of a red blood cell C. Tubes that connect to the lungs D. Air sacs used during respiration

Respuesta :

10-05-2021

Answer:

D

Explanation:

Alveoli are tiny air sacs in your lungs that take up the oxygen you breathe in and keep your body going.

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