Fish Gills Anatomy Quiz
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Questions and Answers

What is the main function of gills in fishes?

  • To filter out harmful substances from the water
  • To provide a large surface area for oxygen uptake and carbon dioxide release (correct)
  • To aid in buoyancy control
  • To regulate water temperature
  • Which part of the gills is richly supplied with blood?

  • Gill arches
  • Gill rakers
  • Tiny filaments (correct)
  • Gill covers
  • What distinguishes gills from other fish respiratory organs?

  • They have a large surface area for gas exchange (correct)
  • They have a high flow rate of water
  • They have complex structure for buoyancy control
  • They are located near the tail
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