What is meant by excretion ? Explain the process of formation of urine.

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The removal of wastes in form for faeces, urea or sweat from the body after proper filteration of the digestive food and the blood is termed as excretion. In the process of urine formation the pure blood is sent back to the body by the kidneys where as the impure blood comes to.kidney from renal artery...
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The removal of wastes in form for faeces, urea or sweat from the body after proper filteration of the digestive food and the blood is termed as excretion. In the process of urine formation the pure blood is sent back to the body by the kidneys where as the impure blood comes to.kidney from renal artery containing waste from liver. Under high pressure the waste like urine gets seprated out from blood stream. Following the path of urethera gets out of the human body. read less
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