Respuesta :
Answer:B - oxygen and carbon dioxide
Explanation:
Explanation:
The answer is B because cellular respiration uses O2 and CO2, and when we breathe we inhale O2 and exhale CO2
Answer:B - oxygen and carbon dioxide
Explanation:
Explanation:
The answer is B because cellular respiration uses O2 and CO2, and when we breathe we inhale O2 and exhale CO2