Question

Why circulation of blood in fishes is called single circulation?

Answer 1

Heya friend here is your ans

Single circulation:In contrast to the animals, fish have only one circulation system where the blood passes only once through the heart. Fishes have two chambered heart, where the exchange of oxygen and carbon dioxide happens across the gills instead of lungs.

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Answer 2

Heya user..!!

Here is ur required answer...!!!

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BLOOD CIRCULATION IN FISHES :

• Fishes have only two chambers in their heart, the blood is pumped to the gills for getting oxygenated and from there it passes directly to rest of the body.

• Thus, the blood goes only once through the heart during once cycle of passage through the body.

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