Biology

10th

grade

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Gaseous Exchange in Humans

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20 questions

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  • 1. Fill in the Blank
    30 seconds
    1 pt

    Respiring cells need a continuous supply of

  • 2. Fill in the Blank
    30 seconds
    1 pt

    Gaseous exchange in humans takes place in the

  • 3. Fill in the Blank
    30 seconds
    1 pt

    Air exhaled has more _____________ than air inhaled.

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