a)State two ways in which the surface area of the fish filaments is increased for efficient gaseous exchange. b)What is the importance of counter flow system...

      

a)State two ways in which the surface area of the fish filaments is increased for efficient gaseous exchange.

b)What is the importance of counter flow system in the filaments of a fish.

  

Answers


Martin
(a)- Numerous/ many;
- Long:
(b) Blood in the gill filaments flow in the opposite direction to water over the gill filaments:
to create a deep diffusion gradient; for rapid ?faster diffusion of respiratory gases
marto answered the question on October 4, 2019 at 10:31


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