The sun, respiration, photosynthesis and food are all sources of energy for living things.
Renewable sources of energy
Without the intake of energy, the default is that things decay (entropy). Living things, which are not closed systems, have to take in energy from outside sources in order to keep their molecules organised into a functional frame for life.Once living things die, then they cease to take in energy and things naturally decay or disorganise themselves.
The sun is the ultimate source of energy in living things since plants use sunlight to make glucose and other animals use the glucose by eating the plants.
Energy is required for living things because they have to have energy to do every other characteristic of life. Living things obtain energy by making it themselves or eating other organisms.
Sunlight and, at the Ocean bottom at heat vents, hydrogen sulfide are both use as sources on bio-energy.
The fuel that living things use for energy is glucose.
all living things use energy
Living things need energy to do stuff like grow, breathe, walk around, dress themselves, sleep, procreate and do their homework. They get it by eating or by soaking up soil and sunlight. If they don't, they soon cease to be living things, and they no longer need to worry about energy.
All living things use chemical energy.
You can get energy from Carbohydrates, Fat and to a lesser extent protein.
Are you a living thing? Yes.Do you run out of energy after running a marathon?Yes.Therefore, living things do use energy for movement.