Understanding the Immune System
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Questions and Answers

What is the primary function of the immune system?

  • To generate energy for the body
  • To defend against infections (correct)
  • To aid in digestion
  • To regulate body temperature

    • How does the immune system protect the body's cells?

  • By attacking healthy cells
  • By isolating the body from the environment
  • By producing harmful toxins
  • By distinguishing and defending against foreign invaders (correct)

    • What is a key feature of the immune system's memory?

  • It records every germ it has defeated (correct)
  • It focuses only on known bacteria
  • It forgets previous infections to create space for new ones
  • It weakens with each new infection encountered

    • Which of the following is NOT a component of the immune system?

    <p>Red blood cells</p> Signup and view all the answers

    Why is it important for the immune system to recognize and destroy microbes quickly if they re-enter the body?

    <p>To avoid prolonged illness</p> Signup and view all the answers

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