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sci ch d1

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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Question
Answer
respiratory system   the group of organs that help you breathe  
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mucus   sticky liquid produced by open parts of the body  
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trachea   a tube going down towards the lungs (aka windpipe)  
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inhale   to breathe in  
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bronchial tubes   the tubes that go from the trachea to the lungs  
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air sacs   the small pouches in which breathing takes place  
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exhale   to breathe out  
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diaphragm   the muscle under the ribs that helps you breathe  
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capillary   a small blood vessel with thin walls through which oxygen, nutrients,and wastes pass  
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excretory system   the group of organs that get rid of cell wastes  
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kidneys   the pair of organs of the excretory system that filter cell wastes from the blood  
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urine   a liquid formed in the kidneys containing nitrogen,extra water, and salt  
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urinary bladder   a strong bagshaped organ that stores urine until it leaves your body  
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