1.

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

Answer»

Due to metabolism several harmful excretory products are formed, the process of removing toxic waste from the body is called excretion.

Urineis one of the body's waste products. It is primarily composed of water and urea. Urea is a special nitrogenous waste compound that the body must routinely remove.Urine formationoccurs in the kidney in three stages: filtration, reabsorption, and secretion.

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