The answer is C. At first I thought it was D but it actually belongs to clubmosses
First question: “Every system in the body relies on oxygen. From cognition to digestion, effective breathing can not only provide you with a greater sense of mental clarity, it can also help you sleep better, digest food more efficiently, improve your body's immune response, and reduce stress levels.” -google
Use carbon dioxide and release oxygen gas
Answer:
reptiles
Explanation:
the reptiles is my favorite
It is the comparison of the nucleotide sequences in DNA