Question

what is respiration?? ​

Answer 1

Answer:

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. In contrast, exhalation (breathing out) is usually a passive process.

Answer 2

Respiration is taking a breath or the act of breathing. An example of respiration is inhaling and exhaling air. The action or process by which an organism without lungs, such as a fish or plant, exchanges gases with its environment. ... In air-breathing vertebrates, respiration takes place in the lungs.