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

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Excretion is the process of removal of waste products from human body.

Urine formation takes place in the kidney and is done through a system of processes which mainly are
Glomerular filtration-Fluid is filtered at rate of 120ml/min
Reabsorption-Some parts of the fluid filtered is reabsorbed in the DCT, PCT and henle loop
Secretion-Some ions and elements are secreted into the fluid by DCT, PCT and others to maintain the osmolarity

Final Answer:Hence the correct answer is Excretion is the process of removal of unwanted waste by a series of process.

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