Answer:
Iron. One of iron's primary functions is helping to oxygenate your body. It helps you make functional hemoglobin, a protein found in red blood cells. In your lungs, hemoglobin binds to oxygen molecules from the air you breathe, then gradually releases that oxygen into your tissues
Step-by-step explanation:
The circulatory system carries oxygen, nutrients, and hormones to cells, and removes waste products, like carbon dioxide
