Red blood cells exchange carbon dioxide for oxygen
The answer is Surgical Contraceptive Methods e.g. Vasectomy(For males) and Tubectomy(Females)<span>.
</span>Vasectomy:- In this method vas deference is cutted and tied so that sperms can't reach uthera.
Tubectomy:- In this method both fallopian tubes are cut and tied, so that no egg can head towards the site of reproduction(
Cervix).
Note:- Both process are irreversible.
Lungs, nose, airway, mouth, pharynx, larynx,trachea,bronchi, and bronchioles. Its three of those but thats all i could think of from the top of my head. Good luck
Yes. No cancer and heart disease would save millions of lives.