The diagram below show a respiratory structure of a bony fish a) Name the parts labeled A, B and C b) What is the advantage of...

      

The diagram below show a respiratory structure of a bony fish
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a) Name the parts labeled A, B and C
b) What is the advantage of counter current flow system in fish over the parallel flow?
c) How is the part labeled A adapted to its function

  

Answers


sharon
a) A – gill filament B – gill rakers C – gill arch/ bar
(b) Maintain a steep concentration gradient across the respiratory surface; facilitating maximum gaseous exchange between
the water flowing over the gills to the blood in the gills
c) (i) Are numerous to increase the surface area for gaseous exchange, for faster diffusion of respiratory gases
(ii) Thin walled for faster diffusion of respiratory gases
(iii) Highly vascularized to transport the respiratory gases for faster diffusion of respiratory gases
Moist to dissolve respiratory gases for faster diffusion of respiratory gases
sharon kalunda answered the question on May 27, 2019 at 05:45


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