Question

what is respiration?​

Answer 1

Answer:

process in living organisms involving the production of energy, typically with the intake of oxygen and the release of carbon dioxide from the oxidation of complex organic substances.

Answer 2

Answer:

1. In physiology, respiration is the movement of oxygen from the outside environment to the cells within tissues and the removal of carbon dioxide in the opposite direction.

2. The act or process of breathing: the inhaling of oxygen and the exhaling of carbon dioxide.

3. The process by which cells use oxygen to break down sugar and obtain energy.

4. Every 3 to 5 seconds, nerve impulses stimulate the breathing process, or ventilation, which moves air through a series of passages into and out of the lungs.