Question

why fishes has two chambered heart.​

Answer 1

Explanation:

Because blood leaves the gills and immediately circulates to the rest of the body, the heart does not require additional chambers beyond the first two. Fish and other animals with 2-chambered hearts, therefore, have simpler circulatory systems than animals with lungs and subsequently, 3- and 4-chambered hearts.

Answer 2

Answer:

Hi friend here is your answer :

Fishes has two chambered heart because oxygen demand is very high but dissolve oxygen is less in amount.

Hope this will help you friend

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