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Worksheet 8.1

Worksheet 8.1

Q 1 50 / 50 points Place the steps involved in thirst in the correct sequence: Results for item 2. 2 25 / 25 points The DRI for water intake for men and women respectively is: Results for item 3. 3 25 / 25 points Categorize the different forms of water intake and output: CategoryWater intake

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Correct Order Answer: Thirst signals arise when the thirst center in the brain senses a decrease in blood volume and an increase in the concentration of dissolved substances in the blood. Correct Order Answer: The mouth becomes dry because less water is available to make saliva. Correct Order Answer: Together, a dry mouth and signals from the brain cause thirst and motivate fluid intake. Correct Order Answer: As water is consumed, blood volume increases and solute concentration decreases, restoring water balance.