How many times the blood goes to the heart in the fish in one cycle and why?
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It goes only one time because first the deoxygenated blood goes into atrium and then into the ventricle (fish's heart has only two chambers) and gets pumped towards the gills. There the blood gets oxygenated and is pumped to all body parts.
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Explanation:
It goes only one time because first the deoxygenated blood goes into atrium and then into the ventricle (fish's heart has only two chambers) and gets pumped towards the gills. There the blood gets oxygenated and is pumped to all body parts.
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