Excretion - The removal waste from the body., Respiration - The release of energy from food , Reproduction - The ability to produce offspring., Cell - The smallest unit of an organism , Nutrition - The ability to obtain and use food., Growth - The duplication of cells to increase size., Response - To respond to changes in the environment., Organism - A living thing, Examples of Organ Systems - Digestive System, Respiratory System, circulatory system , Examples of Organs - Brain, Liver, Heart, Lungs ,

characteristics of Life

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