What is Excretion? Excretion is the process by which living organisms separate and eliminate waste products of metabolism from body cells. If these substances were left to accumulate, they would be toxic to the cells. Egestion is the removal of undigested materials from the alimentary canals of animals. Secretion is the production and release of […]
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There are seven activities which make organisms different from non-living things. These are the seven characteristics of living organisms. 1. Nutrition Living things take in materials from their surroundings that they use for growth or to provide energy. Nutrition is the process by which organisms obtain energy and raw materials from nutrients such as proteins,
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CHARACTERISTICS OF LIVING THINGS Life defined through observations of activities carried out by living things; Nutrition Nutrition is the processes by which food/nutrients are acquired/made and utilized by living organisms. Green plants and certain bacteria make their own food. All other organisms feed on complex organic materials. Respiration This is the breakdown of
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