Biology: The Study of Life
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Questions and Answers

What unifying theme ties together the field of biology?

  • Evolution
  • Energy processing
  • Regulation of internal environments
  • All of the above (correct)

    • Which major theme explains the unity and diversity of life?

  • Evolution (correct)
  • Cell structure
  • Energy processing
  • Internal environment regulation

    • At what levels of organization can biologists study life?

  • From molecular biology to population evolution (correct)
  • Only at the cellular level
  • From internal regulation to external adaptation
  • Only at the molecular level

    • What is the primary tool that biologists use to make observations and form conclusions?

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

    When did life on Earth emerge?

    <p>3.7 billion years ago</p> Signup and view all the answers

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