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Elenna [48]
2 years ago
13

Gas exchange of CO2 for oxygen occurs between capillaries and what structure in the lungs? A. Veins B. Alveoli C. Bronchioles D.

Cilia
Biology
2 answers:
Iteru [2.4K]2 years ago
7 0

<u>ANSWER:</u>

The correct option is B: Alveoli. Gas exchange of "carbon dioxide and oxygen" takes place in the "alveoli" of the lungs.

<u>EXPLANATION:</u>

  • Alveoli are present in the alveolar sacs located at the end of respiratory bronchioles. Alveoli have thin walls and look like bubbles in the sacs.
  • These also are in "direct contact" with the blood capillaries. This contact ensures that "oxygen" is released into the blood capillaries by the alveoli directly.  
Talja [164]2 years ago
6 0

Answer:

B: Alveoli.

Explanation:

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