Science: Elementary School: Grades 3, 4 and 5 Quiz - Life Processes Vocabulary (Answers)
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The life processes vocabulary is the words used to describe the processes shared by all living organisms. You have most likely been introduced to MRS. NERG. But can you remember what the initials stand for? Let me tell you: Movement, Reproduction, Sensitivity, Nutrition, Excretion, Respiration and Growth. But what do they all mean? Some are obvious, like growth (getting bigger) or nutrition (eating), but what about excretion or respiration?
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Stimuli (plural of stimulus) include light, heat, sound, touch, taste and smell - all living organisms are sensitive or responsive to stimuli
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Animals use their bodies to move, while plants move by growing or turning towards the Sun
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All living organisms grow
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Organisms produce offspring to keep the species going after their death
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Plants create their own food from the Sun's energy in a process called photosynthesis. Animal nutrition includes feeding and digestion
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Food molecules are broken down to release energy in a process called respiration. Because our bodies require oxygen for this process, human respiration also includes breathing oxygen in and carbon dioxide out
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All living things must get rid of the useless or toxic byproducts of chemical processes - this is called excretion
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This is another way of saying that living organisms require food, which can only be found from outside themselves (even in the case of plants, which need the Sun in order to make food)
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This definition refers specifically to the method of reproduction seen in some plants and single-cell organisms
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Death is when all life processes stop - all living organisms die eventually
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