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Test your knowledge of half-life with this exam paper. Challenge yourself with q...
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Test your knowledge of half-life with this exam paper. Challenge yourself with q...

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@IntricateSnake

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Questions and Answers

What is the definition of half-life?

  • The time taken for a substance to double its original mass
  • The time taken for a substance to decay completely
  • The time taken for a substance to stabilize
  • The time taken for a substance to decay to half its original mass (correct)

    • Which factor does not affect the half-life of a substance?

  • Concentration
  • Pressure
  • Chemical bonds (correct)
  • Temperature

    • What happens to the half-life of a radioactive substance as it decays?

  • It increases
  • It fluctuates
  • It decreases
  • It remains constant (correct)

    • What unifies biology as a single, coherent field?

    <p>The presence of cells and hereditary information</p> Signup and view all the answers

    Which theme explains the unity and diversity of life?

    <p>Evolution</p> Signup and view all the answers

    What allows organisms to move, grow, and reproduce?

    <p>Energy processing</p> Signup and view all the answers

    What do biologists study at multiple levels of organization?

    <p>Molecular biology of a cell to the evolution of populations</p> Signup and view all the answers

    How do biologists make observations and pose questions?

    <p>Using the scientific method</p> Signup and view all the answers

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