Question

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

Answer 1

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