The answer is B. They bring oxygen from the air into the body.
The lungs don’t produce or release oxygen so it’s not A. or D. The lungs do not transform oxygen into carbon dioxide cause our bodies need oxygen not carbon dioxide so it’s not C. Hope this helps!
Answer:
Major circulation or systemic circulation
Explanation:
It is the process when our heart expulses blood of a chamber called left ventricle and moves to aortic artery and then the blood goes to arterioles and capillaries supplying the oxygen and nutrients that every cell in our body needs.
Cell differentitation is important because our body's need different type of cells to grow and also function
It would be AO and BO this would be the only one with a change of Type O blood the others do not have any chance
A. the mitochondria and chloroplasts are much different in structure than bacteria