Animal Physiology Circulation Quiz

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Questions and Answers

What is the purpose of the cardiovascular system in most multicellular organisms?

  • Transport of nutrients, waste products, and respiratory gases (correct)
  • Protection against diseases
  • Regulation of body temperature
  • Storage of excess nutrients

In which organisms does gas exchange take place by simple diffusion across the cell membrane?

  • Large mammals
  • Amphibians
  • Birds
  • Small organisms (diameter < 1mm) (correct)

What are the body fluids responsible for transporting nutrients, waste products, and respiratory gases?

  • Blood and lymph (correct)
  • Sweat and tears
  • Saliva and gastric juices
  • Cerebrospinal fluid

What is the primary function of arteries in the circulatory system?

<p>Carrying oxygenated blood away from the heart (B)</p> Signup and view all the answers

What is the primary purpose of the cardiovascular system in most multicellular organisms?

<p>Transporting nutrients, waste products, and respiratory gases (B)</p> Signup and view all the answers

What is the purpose of haemostatic mechanisms in the circulatory system?

<p>To prevent excessive bleeding by forming blood clots (A)</p> Signup and view all the answers

Which organisms do not require an internal system of transport for nutrients and waste products?

<p>Sponges, cnidarians, and flatworms (A)</p> Signup and view all the answers

What facilitates gas exchange in small organisms with a diameter less than 1mm?

<p>Simple diffusion across the cell membrane (B)</p> Signup and view all the answers

What are the body fluids responsible for transporting nutrients, waste products, and respiratory gases?

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

What is the function of haemostatic mechanisms in the circulatory system?

<p>To prevent excessive bleeding after injury (A)</p> Signup and view all the answers

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