Answer:
The oxygen enters the bloodstream from the alveoli, which are tiny sacs in the lungs where gas exchange takes place. The transfer of oxygen into the blood is through simple diffusion. While oxygen moves from the capillaries and into body cells, carbon dioxide moves from the cells into the capillaries and starts with high concentration but fades to low concentration.
Explanation:
Pain under rib cage is called hunger
I believe its C) Skipping meals puts your body in starvation mode and slows down your metabolism.
If could be B or also C still kinda confused with the question but if I’m wrong then I’m sorry :(
