Respuesta :

zacharyto2007

Answer:

D. Carbon Dioxide

Explanation:

When you breathe in air, you take in the oxygen and release carbon dioxide.

Serreon2003

Answer: D. Carbon Dioxide

Explanation:Cellular respiration can occur both aerobically using oxygen, or anaerobically without oxygen. During aerobic cellular respiration, glucose reacts with oxygen, forming ATP that can be used by the cell. Carbon dioxide and water are created as byproducts.