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Science Quiz

Quiz yourself by thinking what should be in each of the black spaces below before clicking on it to display the answer.
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Term
Definition
Organism   A living thing  
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Nutrition   Process in which an organism takes in food and breaks it down so it can be used for life processes  
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Heterotroph   Organism that can’t make its own for and must eat other organisms (example: animals)  
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Autotroph   Organism that can make its own food (example: plants, some bacteria)  
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Ingestion   Taking in food from the environment  
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Digestion   The breaking down of complex food materials into forms the cells can use  
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Photosynthesis   Process in which plants make their own food (sugar) using the energy from the sun, water (H2O) and carbon dioxide (CO2)  
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Synthesis   Process in which simple substances are combined chemically to form complex substances (examples: photosynthesis, chemo-synthesis, protein synthesis)  
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Transport   Movement and distribution of materials within an organism  
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Respiration   Process in which energy is released from food during complex chemical reactions (requires oxygen – this is how our respiratory system gets its name)  
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Excretion   Process of removing solid, liquid and gaseous wastes produced by metabolism  
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Growth   Increase in size  
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Reproduction   Process by which organisms produce new organisms of their own kinds  
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Stimulus   Change in the internal or external environment that causes a response  
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Response   Reaction that occurs due to a change in internal or external environment  
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Regulation   Controlling and maintaining internal activities  
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Metabolism   The sum total of all the reactions occurring within the cells of an organism  
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Homeostasis   Maintaining a stable balanced internal environment  
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Created by: LaxyLucy7
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