Bird Migration and Electromagnetic Fields Quiz
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Questions and Answers

What helps birds know where to migrate?

  • Following the migration patterns of other birds
  • Their innate sense of direction
  • Relying on visual cues from the environment
  • Their ability to detect Earth's magnetic field (correct)
  • What type of energy can potentially confuse a bird's sense of direction?

  • Sound waves
  • Gravitational forces
  • Visible light
  • Electromagnetic radiation (correct)
  • In the study, how did the researchers determine if birds were confused about their migration direction?

  • They tracked the birds' movements using GPS
  • They observed the birds' flight patterns
  • They observed the direction the birds faced in their cages (correct)
  • They monitored the birds' vocalizations
  • Why were the birds in the rural area able to determine the correct migration direction?

    <p>The rural area had less electromagnetic noise</p> Signup and view all the answers

    How did the researchers shield the birds from electromagnetic radiation?

    <p>The study did not mention any shielding method</p> Signup and view all the answers

    What is the potential impact of electronic devices on bird migration, according to the study?

    <p>It can disrupt their ability to navigate</p> Signup and view all the answers

    What did Joseph Kirschvink call for in relation to studying the effects of electronic devices on birds' sense of direction?

    <p>To be more careful and rigorous in their research methods</p> Signup and view all the answers

    What did Henrik Mouritsen initially observe that prompted his research?

    <p>Caged robins were facing random directions instead of their migratory directions</p> Signup and view all the answers

    What experimental setup did Mouritsen use to block electromagnetic radiation?

    <p>A Faraday cage made of grounded aluminum screens</p> Signup and view all the answers

    What did Mouritsen and his colleagues find when they shielded the birds from electromagnetic radiation?

    <p>The birds faced the correct migratory direction they should have been facing</p> Signup and view all the answers

    Which types of electronic devices did Mouritsen's team find had no effect on the birds' sense of direction?

    <p>Cell phones and power lines</p> Signup and view all the answers

    What was Mouritsen's initial reaction to studying the effects of electromagnetic radiation on birds?

    <p>He was reluctant, as previous studies had been criticized as flawed</p> Signup and view all the answers

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