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Organization in Living Things

All living things require , or the intake and use of food. Energy is released from food by a process called . As living things they give off carbon dioxide and water. A special activity that removes produced by living things is known as excretion. Living things react, or , to changes in their surroundings. People might react to cold weather by , which helps to warm them. Living things also react to their surroundings by . Plants gradually bend toward . Another activity of living things is , or to increase in size or amount of material contained. Living things produce through reproduction.