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QUESTIONS}, , Q. 1. Name the following:, , The structural and functional unit of the kidney (2011), Q. 2. State whether the following statement is True or False. If false, rewrite the correct form of the statement by changing, , the first or the last word only. (2011), , Urethra carries urine from kidney to the urinary bladder. 4, Q. 3. Study the diagram given below and then answer the questions that follow. a /, , (i) Name the region in the kidney where the above structure is present., , (ii) Name the parts labelled 1, 2, 3 and 4., , (iii) Name the stages involved in the formation of urine., ), , What is the technical term given to the process occuring in 2 and 3? Briefly describe, the process. (2011), , (iv), , Q. 4. Give reason for the following:, Urine is slightly thicker in summer than in winter. (2011)