Question

All living thing?Do all the living thing breathe?Describe how they obtain their oxygen.

Answer 1

YES ALL LIVING BEINGS,I.E. HUMAN AND PLANT BREATH .Human get oxygen by tree ,the tree convert the carbon dioxide into oxygen the carbon dioxide is given out by human .

Answer 2

The food has stored energy, which is released during respiration. Therefore, all living organisms respire to get energy from food. During breathing, we breathe in air. You know that air contains oxygen. We breathe out air which is rich in carbon dioxide. The air we breathe in is transported to all parts of the body and ultimately to each cell. In the cells, oxygen in the air helps in the breakdown of food. The process of breakdown of food in the cell with the release of energy is called cellular respiration. Cellular respiration takes place in the cells of all organisms.