I believe that it relates to or involves free oxygen, if it is used in exercise- aerobic practices help improve the the efficiency of the body's cardiovascular system with absorbing and transporting oxygen.
Hope this helps
The mom's diet goes through her digestive tract, as it normally would. Nutrients are absorbed some through the stomach, and more so through the small intestine. They are broken down into their smallest components, and Mom's blood reaches the baby <span>through the blood vessels in the placenta and umbilical cord.</span>
Learning how to control their eating
