breathing
oxygen
the diaphragm is a muscle (very essential for breathing)
the diaphragm is a muscle (very essential for breathing)
how about breathing.... which is essential to most bodily functions.
Controlling essential body functions like heartbeat and breathing.
Essential: "Discipline is essential in an army." It is essential to get good qualifications to get a good job. Having a good school library is essential to getting good qualifications. Does anyone know a good way to explain this to learners of English?
Without vitamins, the body cannot convert carbohydrates and fats into energy; it cannot repair and construct new cells; nor, can it carry out normal functions, such as thinking and breathing.
Exercise is essential to good health.
Earths atmosphere is mostly nitrogen (78%) and Oxygen (21%).It is the oxygen that is the essential gas for breathing.
Oxygen is required to break down food in order to get energy from food. Without oxygen, we'd have no energy and would not survive.
no good