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Standard IX
Biology
Amphibia
LIST THE FEAT...
Question
LIST THE FEATURES OF A RESPIRATORY SURFACE FOR FISH AND EXCHANGE OF GASES?
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Solution
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.
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