Question

describe the process of ventilation.
multiple choice
movement of air into and out of lungs
delivery of carbon dioxide to cells
forcible movement of oxygen molecules into the bloodstream
delivery of oxygen to cells

Explanation:

Ventilation is the mechanical process of breathing. It involves the movement of air in (inhalation) and out (exhalation) of the lungs. The other options are incorrect: carbon dioxide is transported away from cells (not delivered to them), oxygen movement into the bloodstream is part of gas exchange (not ventilation), and delivery of oxygen to cells is part of the circulatory and cellular respiration processes (not ventilation itself).

Answer:

Movement of air into and out of lungs