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    Biology A-Level

    Adaptations of exchange surfaces

    What Adaptations of exchange surfaces means in Biology A-Level, as defined for OCR.

    Definition of Adaptations of exchange surfaces

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    Reference: OCR

    Gill lamellae have a large surface area, thin epithelium and a rich blood supply; tracheoles have thin walls and fluid-filled tips that deliver oxygen directly to respiring tissues.
    OCR · Exchange surfaces (study guide)

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