Which characteristics of living things is responsible for producing energy?

The characteristic of living things responsible for producing energy is metabolism, which encompasses all the biochemical processes that convert nutrients into energy. This includes cellular respiration, where cells break down glucose and other organic molecules to produce adenosine triphosphate (ATP), the energy currency of the cell. Additionally, photosynthesis in plants captures sunlight to convert carbon dioxide and water into glucose and oxygen, providing energy for growth and development. Through these processes, living organisms maintain their biological functions and sustain life.