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    Biology GCSE

    Passive versus controlled loss

    What Passive versus controlled loss means in Biology GCSE, as defined for AQA.

    Definition of Passive versus controlled loss

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    Reference: AQA

    Losses from the lungs and skin are uncontrolled, whereas the kidneys are responsible for the controlled loss of water, ions, and urea by adjusting urine production.
    AQA · Maintaining water and nitrogen balance in the body (biology only) (study guide)

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