how do living organisms obtain energy from food
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By oxidation of foods many products are formed which help in many functions like respiration
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Therefore they cannot make food from carbon dioxide and water. This means that animals must get their food from other organisms, such as plants or other animals. Like plants and algae, animals use food to produce different kinds of substances after they eat it. Animals use these substances for energy.A living organism can either make its own food or depend on others to make food for them. For example green plants produce their own food from a process called photosynthesis. They use the chloroplasts in their cells to capture energy in sunlight.
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