the respiratory system and the circulatory system work closely together to deliver oxygen to cells and to get rid of the carbon dioxide the cells produce.
Answer:
"If my blood sugars are elevated, my baby's lungs will mature faster, which is good."
Explanation:
Our immune systems have improved over the years due to improvements in the medical fields. I also believe your brain has a bigger effect on how sick you actually allow yourself to become
Fat cells in the adipose layer under the skin.
