During inspiration, fresh air enters the respiratory system through the pared external nares (nostrils; shown here) and/or the oral cavity to the pharynx. Air then travels through the glottis into the trachea, through the bronchi and bronchioles to reach the alveoli.
Good self esteem will make you want to do the project at hand,and will let others want to work with you
Answer:
well ther is carbon diaxoide
Explanation:
A is the answer I've had this question before also on a health work sheet
