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.
the immune system is affected
Answer:
The scientist was Ivan Pavlov
Explanation:
He was a Russian scientist, who performed multiple research on dogs. He is best know for his experiments in classical conditioning.
Explanation:
How to Make Puff Pastry The principle behind the pastry is to create many layers of dough and butter by folding and turning the two together. (Unlike short pastry, the butter is not incorporated into the dough but rather folded into the layers). Find this Pin and more on Cream Puffs Variations by Tessa Cuenca.
Medicare is a federal system of health insurance for people over 65 years of age and for certain younger people with disabilities.
Medicaid is a federal system of health insurance for those requiring financial assistance.
