1) Releases urea, water, and salt from the body through sweat. a) Lungs b) Liver c) Skin d) Kidney 2) Release carbon dioxide and water from the process of respiration. a) Lungs b) Kidneys c) Large Intestine d) skin 3) They filter wastes and poisons out of the blood. The waste removed here is called urine. a) Skin b) Kidneys c) Liver d) Lungs 4) It extracts any remaining usable water and then removes solid waste（undigested food） through the anus. a) Large Intestine b) Kidneys c) Lungs d) Liver 5) This structure collects urine from kidneys and temporarily store urine until it's been removed from body. a) Bladder b) Large Intestine c) Ureter d) urethra 6) It transports oxygenated blood which contains urea and other waste to kidneys a) Urethra b) Ureter c) Renal artery d) Renal vein

Excretory System / Function of the Components

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