True: Urea is made in the liver when proteins and amino acids are broken down, Respiration releases energy from food. It happens in cells., Water leaves the body by breathing urine and sweating, Urea is removed from the blood by the kidneys, Ions leave the body in sweat and in urine, Doing exercise or shivering causes heat energy to be released in the muscles,

homeostasis true false summary-needs changing as some are wrong

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