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Triss [41]
2 years ago
12

Please help me - fill in the blank

Biology
1 answer:
Charra [1.4K]2 years ago
6 0

Answer:

carbon dioxide, 16.4% of oxygen, and 4.4% of carbon dioxide, nasal cavities (or oral cavity) > pharynx > trachea > primary bronchi (right & left) > secondary bronchi > tertiary bronchi > bronchioles > alveoli,

Explanation:

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