Difussion occurs from a high concentrated region to a low concentrated region. The velocity of diffussion is proportional to the differential of concentrations. In the lung arrives blood with low levels of oxygen while the long is rich with fresh oxygen so the oxygen flows from the lung tissues to the blood.
The other tissues consume oxygen continually them they get poor in oxygen and so the oxygen that is in the blood diffuses to the tissue that is poor in oxygen.
Oxygen-free radicals that are very proactive molecules with every cellular module/component
Answer:
the reason we feel pain is because our bodies have tons of nerves that help us move, think, and feel in all kinds of ways. Pain Really Is All In Your Head it feels like the pain is unbreakable but all we can do is try to deal with it i know how it feels because i have pain to . i guess it depends what pain you have
Explanation:
idk if this gonna help you
Ibeleive the answer is bullying because younger kids get bullied and even sometimes adults but teenegers get bullied the most by other teenagers which causes stress and other issues.
sorry if its wrong
