b) When we breathe in air, it enters the lungs down the_____
right and left bronchi. Each bronchi then divides further into_____ after about 20 branching, you reach the____which are surrounded by____
fill in the blanks.
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Answer:
1.Trachea
2.Bronchioles
3.Alveolies
4.Blood vessels
Plz mark as BRAINLIEST
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