Question

Easy points here!!!

Answer 1

Cellular Respiration - Option 5

Step-by-step explanation:

The animals take in the oxygen produced by plants and make ATP. When ATP is created, carbon dioxide is produced. Plants take in carbon dioxide and do photosynthesis thus producing oxygen again. It is a cycle. The answer is cellular respiration a.k.a cell respiration.

Answer 2

Y is cellular respiration.

X is carbon dioxide.

Step-by-step explanation:

Hope this helps! :)