Air travels down the trachea and then enters the bronchi Air

Air travels down the trachea and then enters the bronchi. Air reaches small sacs Air travels down smaller Air enters through the called alveoli. and smaller brondhioles. nose or mouth. reset help

Solution

1.Air enters through the nose or mouth

2.Air travels through the trachea and then enters the bronchi

3.Air travels down smaller and smaller bronchioles

4.Air reaches small sacs called alveoli