Respuesta :
Answer:
D. Diffusion
Explanation:
"...oxygen diffuses from alveolar sacs to blood in capillaries CPR, or cardiopulmonary resuscitation, is a first-aid technique to help save lives."
Answer:
D. Diffusion
Explanation:
"...oxygen diffuses from alveolar sacs to blood in capillaries CPR, or cardiopulmonary resuscitation, is a first-aid technique to help save lives."