LIST THE FEATURES OF A RESPIRATORY SURFACE FOR FISH AND EXCHANGE OF GASES?

Dear Student,

In fish gaseous exchange occurs through gills.  Gills are composed of several combs like filaments that are filled with blood capillaries. 

The features of the respiratory surface are 
  • Respiratory surfaces have a large surface area to ensure maximum contact with water.
  • Respiratory surfaces are always moist.
  • Respiratory surfaces are extremely thin.
  • Inside they are in contact with capillary that allows gaseous exchange between blood and surrounding water.
  • They are well ventilated and receive a steady flow of air or water.
Regards

  • -1
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