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Question
What are the components of urine? Which of these waste products is the main excretory product in human beings? What is removed along with water as sweat? [3 MARKS]
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Solution
Waste products: 1 Mark
Main excretory product: 1 Mark
Sweat: 1 Mark
The urine consists of 95% water, 2.5 % urea and 2.5% other waste products. Urea is the major excretory product in humans. Extra salts are removed along with water as sweat.
Main excretory product: 1 Mark
Sweat: 1 Mark
The urine consists of 95% water, 2.5 % urea and 2.5% other waste products. Urea is the major excretory product in humans. Extra salts are removed along with water as sweat.
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