Respiratory System Quiz
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Questions and Answers

What is the main purpose of the respiratory system?

  • To facilitate gas exchange (correct)
  • To regulate body temperature
  • To produce energy
  • To support digestion

What are the microscopic air sacs in the lungs called in mammals and reptiles?

  • Bronchi
  • Atria
  • Trachea
  • Alveoli (correct)

How do the air sacs in the lungs communicate with the external environment?

  • By active transport
  • Through direct diffusion
  • Via a system of airways (correct)
  • By osmosis

What is the largest hollow tube that connects the lungs to the external environment?

<p>Trachea (A)</p> Signup and view all the answers

What determines the variation in the anatomy and physiology of the respiratory system?

<p>Size of the organism, environment, and evolutionary history (C)</p> Signup and view all the answers

What is the term for the specific organs and structures used for gas exchange in animals and plants?

<p>Respiratory system (D)</p> Signup and view all the answers

What are the microscopic air sacs called in birds for gas exchange?

<p>Atria (A)</p> Signup and view all the answers

What is the largest hollow tube that connects the lungs to the external environment?

<p>Trachea (D)</p> Signup and view all the answers

What is the term for the internalized respiratory surface in land animals?

<p>Linings of the lungs (C)</p> Signup and view all the answers

What do the air sacs in the lungs have a very rich supply of, bringing the air into close contact with it?

<p>Blood (D)</p> Signup and view all the answers

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