Biology, asked by Alfiya2006allu, 1 month ago

class 9 biology
chapter:breathing for energy

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Answered by hairuismail

Answer:

trachea>bronchi>lungs>blood>

Explanation:

Pathway of air: nasal cavities (or oral cavity) > pharynx > trachea > primary bronchi (right & left) > secondary bronchi > tertiary bronchi > bronchioles > alveoli (site of gas exchange)

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class 9 biology chapter:breathing for energy​

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class 9 biology
chapter:breathing for energy