Excretary System

21/07/2014 19:03:00

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INTRODUCTION:- excretion is the process by which the unwanted substance & matabolic wastes are eliminated from the body. There are many organ & system involved in excritary function such as:- Kidney, skin, lungs, Gastro Intestinal Tract, Salivary Gland & Liver are main channels through which excretion takes place. There seems to be a general rule regarding the channel of excretion of different substances. For instance,

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