UNIFYING CONCEPTS OF ANIMAL RESPIRATION Cells using cellular respiration need a steady supply of oxygen and must continuously dispose of CO 2 The respiratory.
Copyright © 2009 Pearson Education, Inc. People cannot survive in the air at the world’s highest peaks in the Himalayan Mountains Twice a year, flocks.
The Respiratory System. Process by which O 2 and CO 2 are exchanged between cells, the blood, and air in the lungs = respiration –The human respiratory.
